Classic How do i get better gear (Noob in Classic)

Im a new player who is playing classic wow and I am lvl 26... i got boosted in level a lot because a guy invited me to a dungeon. I have no idea what to do now. I'm a human Warlock and I go to places that I think will be good to do but it is difficult to kill mobs who don't have the grey level threshold, and I think it's because I might not have good gear. How exactly do i get good gear? The gear they sell in Stormwind don't seem that good, am I SUPPOSED to level up in tailoring to get the gear I need to advance further? Or can you just play the whole game by just buying gear or getting it from drops/quests? (Im in redridge and ashenvale) via /r/wow https://ift.tt/3pG7bhd