I think when you're just starting with altcoins, its important not to go heavy on too many projects. If you're looking for high risk and the possibility of big rewards, i'd suggest diversifying across 3-5 coins. That way, you spread out your risk without overwhelming yourself with too many assets to manage
The most stable option is to take the biggest 3-5 coins and get ready to hodl them till the alt season booms.
Everything can't go downhill from here, only in case you have shaky hands because of said coins / you are scared of a bit of red.