(Before you read this I think it's necessary to know that I'm 16 years old so my budget to invest in unfortunately very limited.)
I bought Bitcoin for the first time in 2017 at $5k, just weeks before the big pump to almost $20k, stupid as I was I didn't sell anything at that moment and just hodl till te pump was over

The following 3 years I wasn't really busy with Bitcoin, I checked the price sometimes and rarely I bought some new Bitcoin (mostly I only bought for like $50 because of my young age). My total investment at this moment is I think around $300.
Yeah we all know where we are today, bitcoin trading at fucking $55k! I have sold 33% of my btc at $37k (I had learned from 2017 that I should take some profits). My portfolio is currently worth $2100(!), but I don't know what to do know. It is a lot of money for my age, I am thinking about selling it all now and wait for hopefully a dump and reinvest it all. But yeah who says there is going to be an big dump now that big companies like Tesla are investing in it.
I seriously don't know what to do, of course it could be possible we will still be in a bull market the following weeks/months and then I would regret if I will sell it all at this moment.
I need an exit strategy, but I don't know what way?
If you guys have some tips or ideas, let me know : )
PS: I hate it that I was quite early in Bitcoin but I was very young at that moment so I couldn't invest more, now I see people who stepped into Bitcoin in 2017 too that have way more money hahaha, but i'm very happy with what I have know.