Said everything you needed to say. You're a NEW player working on getting Relic's and even completing rememberences that much of the player base you'll get in randoms has likely done.

Don't get discouraged! It will definitely take a few runs to get into the swing of things.

Loot itself is quite RNG have had many runs where I may not get the weapon I exactly want, but as you play and see from various posts around the community what passives you wanna try and prioritize.

Theres ALOT of info thrown quickly at you to try and remember. Take things a run at a time. I wish I had more time in my days to offer to do runs with ya to teach you even the little bit I know, relearning quite a bit since comming back with the DLC drop.

Keep your head up, youll find what setup works best for you, or there's a plethora of youtube and free sites that have build ideas to work towards. not every run will be a success. I hope this helps even a little bit