Buying alt coins now

Since we’re going to enter an alt season sooner or later (who knows when), I decided to invest some money into altcoins from the top 100 Market Cap and hold them until then.

I wasn’t sure which coins to pick, so I kind of chose randomly and spread my money across different ones to reduce risk. I did put more money into well-known alts like ETH, DOGE, and SOL, for example.

Does this strategy make sense? Or am I making a big mistake?

Please don’t comment stuff like "buy this coin" or "avoid that one", I’m not looking for coin recommendations.

Thank you