Someone help lol

Im new and have no idea what Im supposed to do after I do the tutorial and unlock all heroes

Get one hero to level 20. Then you can join the tavern brawl and win a pack a week. Get all basic cards. Play and have fun.

Play the Knights of the Frozen Throne Prologue to get a free card.
Disenchant a card of common rarity you have more than two copies of.
Because you get 95 dust for your first card you disenchant.

Yhe i think you need to liker dust poo poo lol dont know tho

You can keep playing in practice mode until you have all the basic cards and are familiar with all the heros, their abilities and resources.
Go out and play a casual match against some other player.
Friend other players, and watch them play. Sometimes it’s easier to watch than to play. You can friend me if you like: Mullvaney #1916.
Have fun! Hearthstone is a fabulous game!

Have fun mostly. Been playing on and off so it’s okay to take a break and if things get out of hand like a 4 game losing streak just step away. Go read a book or play something else. Playing slightly mad at this game will have an effect on your play and thinking and drop your rank even more.

Best of luck to you and your future endeavors. If you play wild I might see you.