Very popular question. Among others.
It depends on what Go means to you. For most of us amateurs,
we are playing "for fun" -- still, there are different groups:
- those who have little or no desire to improve;
- those who have a strong desire to improve;
- and the continuum in between.
Where are you in this continuum ?
If you have little or no desire to improve -- and just want to "enjoy" the game,
enjoy watching other people's games, and enjoy other aspects of it, not concerned about improving --
then what is the meaning of your question ? What's so horrible about slumps ?
If you just continue to play, even without any work or study, eventually
you'll settle to where you'll win-lose 50/50. Slump over.

If you have some desire to improve, then how strong is the desire ?
Is it strong enough that you will study regularly, maybe even find a good teacher at some point ?
Often, going back to the basics is important.
- What does Go mean to you ?
- How much effort have you put into Go ? How much effort will you put into it ?
- If you are "stuck" for a long time, are you going to seek external help (say, look for a good teacher) ? Or, will you continue to work at it by yourself ?
Another continuum:
- Maybe you're very close to a breakthrough. Maybe all you need is someone to open a door or two for you, and you can get out of your current "slump".
- Maybe you're nowhere near a breakthrough.
- And again, the continuum in between.
Where are you in this continuum? Do you think you can figure out on your own where you stand in this continuum?
Or do you think you need external help (say, a good teacher) to help you figure it out?
If you happen to find a good teacher (or 2, 3, or more) and they look at your games
and your moves, and they think you need a ton of work on your basics, and that
it may take a year (or 2, 3, or more) just to unlearn your biggest bad habits,
just to fix your most basic fundamentals,
will you commit to the regular lessons for a year (or 2, 3, or more) ?
If Go is long term for you, and you're committed to long-term improvement,
then what's so horrible about slumps ?
What does Go mean to you ?