I also learned the same way:
But i learnt the hard way by losing so much that there is a trick to everything! So now, if there is a small crash, i will just take a quick look at it, that's all.
I don't care as much about the price anymore... unless I want to buy something/coin (that's not urgent, if urgent I'll buy at whatever price I find it on.)
RE: Why STOP LOSS in ALTs is not needed in cryptocurrency SHORT TERM!