Your issue are not the coins but your mentality, you thought about it for months and without any experience invested in a huge number of coins and now that you are losing you want to reorganize your portfolio, decide which coins are you wiling to hold for and hold them for years, selling after a bad week is not something an investor will do.
While you are not wrong, it also depends on the investor. There are HODLers and there are FLIPpers...I happen to be both.
There are coins I HODL, and there are coins I adjust/flip as need or opportunity arises...not panic, just strategic play. I am constantly on the lookout for promising coin and I don't hesitate to re-invest or collect my "winnings" to those as necessary. So far it works great for me.
But the biggest difference is that you are an experienced trader a person that is relatively new to this needs to start slow and make safe bets while they learn, you do not need to be so conservative because you have experience and you know what to look for.