Firstly this up and down coins are not worthy investment for mid and long term. Whatever you do they will go down and down. If you really want to hold I would suggest some coins which have great project behind it. Hype is not stay forever but if a coin backed by good vision it will stay for sure. Like ethereum or bnb. I wouldn't say bitcoin cause it's a basic investment. Everyone should invest in Bitcoin with 30-40% of their portfolio. So find coins which have great team and vision and go for it. hodl it it will surely give you profit in long run.