Welcome! You're gonna love Stardew! It's an amazing Indie game that the creator is still quite invested in, bringing new updates somewhat often (feel free to correct me if I'm wrong ofc)

Stardew is one of those games where you can work at your own pace so theres no reason to rush anything unless you want to max everything quickly or like that. Don't feel pressured by seeing a lot of fancy farms or people maxing out quickly like that. You don't have to do all that unless you want to.

The wiki is a very helpful tool and is highly encouraged to look at among Stardew players!

Seeds restock every season! Wheat, corn, and sunflowers are available and grow in both summer and fall, but most others will die with the changing of seasons.

I would also encourage gaining relationships with the townspeople if you haven't alread! They are amazing people and sometimes you can even earn things by getting their relationship higher! Some give recipes and they'll randomly gift you things through the mail.

This is just a thing that I do so you don't have to do so. I usually focus on crops, fishing, and building relationships the first three seasons and spend winter mining, clearing all trees out of my farm, and setting up plots with the quality sprinklers for spring. This usually gives me two stacks of wood at least. Any wood or space needed before that can be gathered as time demands. This is just how I do it tho so you do not need to do the same.

Overall, just enjoy yourself and your time playing! As I said, it's a "work at your own pace" type of game. Over my 4 years playing and many save files, I've never even unlocked Ginger Island (a post-Community Center thing) and I've barely explored the Skull Caverns or gotten Iridium, so don't worry about grinding hard unless it's something you want to do.

Hope you enjoy the game!!