Hi guys I've been playing D3 for years but I never played it professional. I played like 2-3 weeks per year. I don't know so much stuff. I just made lot of bounties and rifts. I want to return game but I want to play more competitively. I downloaded game today again and tried some rifts. I can handle max to T3-T4. I am so weak. I don't have a spesific build just random things. I want to know what should I do now? How do I get stronger? How do I find gear?
3a. Upgrade rare item (mostly for weapons, because they're expensive at Kadala)
3b. Convert set item (if you get multiple same set items)
4. Join open public games, and leech for gear (and experience)
Those are pretty much main methods of farming gear, at least basic ones. After that you should be able to do higher torments and higher greater rifts, and then start chasing ancient gear and get into fine tuning of gear (primary/secondary rolls, augments, etc)