So I've continued trying to play more aggressively, albeit it the slight worry in my mind of what I'll do when I get to the level of opponents who know how to handle such aggression. Recently I came up against such an opponent, as it seemed that nothing I tried worked, although I didn't realize it until several moves after the fact. Part of the problem is that while I played what I think are more daring moves, they also had the effect of leaving a possible weakness and having to figure out what to do if my opponent tries to exploit it:
The tenuki on

. I've always been uncomfortable about playing tenuki in response to an approach, as there's always the question of what to do when your opponent plays the double approach. I don't think I got that bad a result, although my reading couldn't figure out how much pressure I could have put on White to keep his two groups separate.
The pincer attack on

. I know the sequence, and I know the result is that Black gets a wall while there's aji from the R14 stone I'm pincering. During the game, I couldn't figure out at all how to deal with that aji, and the result is spectualarly bad.

Leela particularly hated when I played P15.
Leela also hated my play at K17, which surprised me since I thought it was a good, aggressive reducing move.
(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.50]TM[1200]OT[5x60 byo-yomi]
PW[thuynh333]PB[Fedya]WR[4k]BR[5k]DT[2019-05-24]PC[The KGS Go Server at
http://www.gokgs.com/]RE[W+Resign]
;B[pd]BL[1196.238]
;W[dp]WL[1197.198]
;B[pq]BL[1192.391]
;W[dc]WL[1185.068]
;B[qk]BL[1186.575]
;W[mp]WL[1180.586]
;B[ce]BL[1171.415]C[I'm not certain if tenuki is a bad idea, but I think in any case, Black needs to know how to deal with a double approach from White in the lower right. ]
;W[cd]WL[1168.909]
;B[de]BL[1164.374]
;W[gc]WL[1158.724]
;B[ci]BL[1151.182]
;W[qf]WL[1154.902]
;B[qh]BL[1121.679]C[I thought this was a natural extension for Black, and would lead to my getting a good wall, but]
;W[qc]WL[1149.002]
;B[qd]BL[1117.531]TR[qf]C[You have to know how to handle the aji of the white stone, which as we'll see, I couldn't figure out how to deal with.]
;W[pc]WL[1147.167]
;B[od]BL[1113.326]
;W[rd]WL[1141.675]
;B[re]BL[1110.243]
;W[rc]WL[1139.755]
;B[qe]BL[1101.27]
;W[nc]WL[1138.883]
(;B[me]BL[1084.574]C[I can't cut at P17, so I played this. Somehow it doesn't feel right.]
;W[nd]WL[1137.571]
;B[ne]BL[1064.198]
;W[po]WL[1130.61]
;B[qo]BL[1034.509]
;W[qn]WL[1125.881]
;B[qp]BL[1028.094]
;W[pn]WL[1117.524]
;B[nq]BL[998.525]
;W[mq]WL[1109.434]
;B[mr]BL[972.655]
;W[lr]WL[1098.279]
;B[nr]BL[952.988]
;W[lo]WL[1092.391]
;B[fq]BL[927.738]C[This move, I think, is the problem. I had thought about jumping to P9, but decided restricting White on the bottom would be better.]
;W[eq]WL[1077.889]
;B[iq]BL[896.871]
;W[cn]WL[1073.096]
;B[fp]BL[889.138]
;W[ck]WL[1070.174]
;B[ei]BL[885.475]
;W[er]WL[1065.863]
;B[fr]BL[876.45]
;W[jd]WL[1042.302]
;B[jc]BL[799.998]C[I have a feeling this isn't right, but White seems to have done well in three of the corners and I don't think I can let White get the top.]
;W[kc]WL[1036.208]
;B[ic]BL[790.546]
;W[id]WL[1027.296]
;B[hc]BL[786.116]
;W[hd]WL[1024.773]
;B[gb]BL[780.695]
;W[fb]WL[1013.619]
;B[fc]BL[752.133]
;W[gd]WL[1011.986]
;B[hb]BL[747.21]
;W[eb]WL[998.311]
;B[kb]BL[742.778]
;W[lc]WL[992.751]
;B[lb]BL[739.466]
;W[mb]WL[990.98]
;B[ja]BL[727.122]
;W[be]WL[980.333]
;B[bf]BL[716.977]
;W[bd]WL[978.596]
;B[cg]BL[714.871]
;W[pj]WL[972.431]
;B[pk]BL[679.103]C[Playing at R10 looked like the sort of move that would get people roundly criticizing me for playing too passively, but White winds up being able to use the aji of R14 to destroy my position.]
;W[ph]WL[966.763]
;B[qg]BL[672.09]
;W[rf]WL[962.698]
;B[se]BL[669.267]
;W[pf]WL[959.545]
;B[pg]BL[665.481]
;W[of]WL[951.554]
(;B[oe]BL[659.247]C[Hmmm, I didn't necessarily have to play here yet, since if I let White play here next I can still win the capturing race. In any case, I'm still in a terrible position.]
;W[og]WL[948.741]
;B[oh]BL[657.345]
;W[pi]WL[937.723]C[Now I'm in huge trouble. Playing at R11 instead of P12 wouldn't have helped much.]
;B[qi]BL[653.896]
;W[mg]WL[906.555]
;B[ke]BL[604.428]C[A mistake, I think. I should have played at O13 and forced White to connect before jumping out here.]
;W[mi]WL[886.332]
;B[ni]BL[488.933]
;W[nj]WL[858.419]C[I have a feeling I can effectively resign here, but I fought on for quite some time.]
;B[qj]BL[452.554]
;W[oj]WL[852.336]
;B[kf]BL[448.388]
;W[kh]WL[837.985]
;B[if]BL[445.306]
;W[gf]WL[829.775]
;B[ig]BL[441.676]
;W[gh]WL[826.026]
;B[ii]BL[439.507]
;W[hh]WL[816.124]
;B[ih]BL[436.187]
;W[kj]WL[805.36]
;B[ik]BL[431.988]
;W[jj]WL[788.36]
;B[ij]BL[427.757]
;W[io]WL[773.013]
;B[ed]BL[423.72]C[I was hoping White would miss the necessity of connecting at L16.]
;W[kd]WL[754.178]
;B[kr]BL[413.848]
;W[kq]WL[739.978]
;B[jr]BL[410.257]
;W[ls]WL[736.506]
;B[fn]BL[369.55]
;W[cb]WL[733.795]
;B[cl]BL[362.607]
;W[dl]WL[728.559]
;B[cm]BL[359.581]
;W[dm]WL[725.391]
;B[bk]BL[357.249]
;W[dk]WL[720.905]
;B[bj]BL[354.08]
;W[bn]WL[719.273]
;B[bl]BL[350.338]
;W[gk]WL[695.991]
;B[gj]BL[323.008]
;W[fj]WL[690.524]
;B[gi]BL[317.201]
;W[fi]WL[687.765]
;B[hk]BL[314.733]
;W[hi]WL[682.053]
;B[hm]BL[311.177]
;W[hj]WL[677.675]
;B[gl]BL[308.092]
;W[fl]WL[666.623]
;B[fm]BL[299.604]C[I connected; not that it helps much.]
;W[ol]WL[655.586]
;B[rg]BL[291.6]
;W[sf]WL[648.124]
;B[rm]BL[288.738]
;W[rn]WL[645.394]
;B[rl]BL[284.136]
;W[sg]WL[639.841]
;B[sh]BL[276.476]
;W[si]WL[628.745]
;B[rh]BL[273.891]
;W[sk]WL[627.239]C[I couldn't find ay way to save the group, so I resigned.])
(;B[og]
(;W[oe]
;B[nf])
(;W[nf]
;B[ng]
;W[mf]
;B[oe]
;W[le]C[Black is in terrible shape.])))
(;B[oc]
;W[ob]
(;B[nb]
;W[mb]
;B[pb]
;W[na]
;B[qb]
;W[rb])
(;B[pb]
;W[nb]
;B[qb]
;W[rb])))