21M starting to take saving more seriously!

Hello, I am 21M currently earning £1,793.44 after tax per month. I’ve been pretty reckless 18-21 with my money, had a lot of fun but no regrets.

I’m wondering what is the best avenue to explore for savings? I have a Lifetime ISA, Stocks & Shares ISA, but none of them really excite me as a good long term model that will generate revenue at a good rate.

What would a good investment strategy be? I have been thinking about depositing some savings into crypto, but I’m not sure.

Any ideas would be super helpful!

Thanks guys.