I'm very much of the view that long-term buy-and-hold is the best approach. Firstly, you don't stress from having to actively track and trade your current holdings and still have the potential to come back after time t and see where you investments now sit without all the hassle in-between.
Secondly, if you spread your investments across a sufficiently large number of investments, you are maximising your chances of hitting upon at least one x1000 successful crypto - which, even with a modest investment of $100 will make it all worthwhile. The only downside is that, to find these little gold nuggets, you need to do some background research which should be all part of the fun anyway for a serious investment approach.