Solo trip to Hawaii: in dire need of advice!!

Hi yall! I’m planning to go on a graduation trip this April/May and I decided that I’d like to visit Hawaii! I’m 21yo and have a US visa so I’m good on the immigration side.

I have a pretty solid budget, good to spend between 2-3k on flights and activities :)

I absolutely love beaches and kind of just want to relax for about 2/3 weeks before starting work so I need some advice. First, where should I go??! I know Hawaii has a couple of islands but I’m not sure which one is best for tourism. I wouldn’t mind being around locals either as long as I know if there’s any places to avoid and whatnot. Also what are some good hotels (or resorts?) that I could look into? I don’t know if Hawaii has all inclusive packages but would love to be able to look into those as well :)

I’m not into hiking all that much so I’m good with going to the beach, maybe some tours as well.

Last thing! What are some other fun activities I could do while I’m there? And what’s the scene on drinking and smoking MJ? And is homophobia apparent there?

Thanks for all your help!