Crypto market is the most unpredictable platform. So my suggestion to you is before holding your crypto coin please try to understand their motto and future plan whether they are serious about their project or not. So you can sell your 75% and hold only 25% of crypto. That will be a good plan.
Sometimes future plan is as good as nothing if the people behind the project doesn't even follow that plan or these roadmaps/future plan is just there for decoration purpose.
Crypto market is indeed unpredictable and efven if you trying to understand their motto and plan it's still unpredictable because these two thing you mentioned aren't actually relevant.
If you want more relevant factor to decide whether a projet worth holding or not try to see their progess, partnership, product and so on.