I would of course diversify my portfolio, the first half of the portfolio I would invest in blockchain number 1, the second half of the portfolio I would invest in little-known projects that are under development, in any case, I think that now is not a bad time to invest. And of course you need to invest in stages, for example every 3 months
I would go the same way as you but I'll be more specific in my investment. The first part of my portfolio will be in Bitcoin, Ethereum and Binance coins, I'll buy this coins in very large quantity as I believe this project will keeps been the face of the industry for the next ten years and beyond. The next part of my portfolio will be in Defi, metaverse and meme coins (just dogecoin and Shiba Inu). I won't be stupid to invest in every meme coins that I see but this two above will have some good gains in the next bull market.
I'll then keep some reserve and pay attention to coins getting launched on the binance launchpad and pool. This projects and the sectors they're force on will likely be the next trend just as Mana and sandbox came out last bear market and dominated the metaverse trend.