I think the altcoin season has started since January and I think you are too late to realize it too late.
Youtubers will indeed make lots of videos about altcoin and that's for their own sake, you don't believe that too much, doing your own research will be better than believing them, even this will not only be altcoin season but for all crypto.
Now everyone jumping on it likely as mad, as tons of money are coming into the altcoins market. This alt season gives me flashbacks of 2017 all over again. So many people's believes the same way, I hope you got on the ship before it sails to the moon.
A lot of people just follow the hype on the coins they see pumping up. but most of them only followed for a while and when they entered some were trapped by the correction that occurred.
My advice in the season like now is not that good following the hype going on in the market. it would be better to just focus on altcoins in the top market. it can save us from the correction trap.
and most importantly do not panic easily because the current altcoins season I am sure will still last quite a long time.