That’s answered in those links you’ve said you’d prefer not to read. =)
First thing you want to do is figure out your difficulty. If you’re too high, you’ll be taking forever to kill anything and loot comes slower. You want to be able to move quickly and kill elite packs within 20-30 seconds. If you have to go down in difficulty to achieve that, do it. You’ll kill more packs while you play, die less, and get more legendaries over time. Increase it when you can easily kill elite packs in the new difficulty in that same 20-30 sec time span.
Look at ways to get all of your gear upgraded to a set or legendary item. They’re much stronger than rares/yellows and just flat out having more stats will make the game easier, allowing you to increase the difficulty and still move quickly. In adventure mode, look for bounties. Complete all 5 in an act and you’ll get a chest from Tyrael. They’ll be loaded with crafting recipes. Haedrig can help you get items if the monsters aren’t being generous with drops. They also have a chance to drop legendaries on their own.
That ring you have is one of the bounty chest drops. Don’t get rid of it until you have a better one. It’s one you’ll use in many builds. When you do get a better one, take the lvl 67 one and use Kanai’s Cube first recipe to extract it’s power. One of those links will tell you how to get the cube if you don’t have it already. It should be a high priority thing to get and doesn’t take long.
Socket your gear. Helm, rings, amulet, and weapon all get 1 socket. Legs get 2. Chest gets 3. If it can have a socket, it needs to have it. Put an emerald in the weapon. If killing is slow, use rubies in the chest and legs for more STR. If you’re dying a lot, put amethysts in til you have 750-800K health, then diamonds for resists. For the helm, rings, and amulet, you’ll want to check a build guide for your particular set. For rings and amulets, treat them like legs/chest until you get the right legendary gems, then use only the legendary gems. They’re a huge power boost.
Legendary gems make the early Torments so so easy. You get them from Greater Rifts (GRs). You get the keys for those in Nephilim Rifts. Each GR you do drops 1 legendary gem (of 20-25ish total). Collect them all. You’ll get upgrades at the end of the dungeon from Urshi. Prioritize the gems you have equipped. Which ones? You’ll need a build guide for your set for the quickest answer.
As others have said, follow the Seasonal Journey. It guides you through what you need to do while maintaining immersion so you don’t have to constantly check maxroll.gg or similar sites.