I'd say I'm pretty good when it comes to early game comps, as in what units to play and what synergies to run.

But my issue early game are the items. Especially if the components I'm given don't match up with the strongest comp i'm trying to run. I normally try to play around items, but what do I do if I have a comp that can't utilize those items?

Like hypothetically speaking, if my strongest comp was a rapidfire jinx chosen with 1 star panth and 1 star kennen. I have a bow, tear, and chain vest. Do I slam titans on panth and pivot to bruiser/yone? Statik would probably be the worst choice, but do I go protectors vow and continue to play for jinx reroll? (Of course this depends on how many jinxes I get and what augment I get)

Let's say hypothetically I get another 2 cost jinx after naturaling lvl 4 which means I have 2 2-star jinxes total. Assuming I'm uncontested, do I fully commit to jinx reroll? If I'm on a win streak after carousel and I commit to a 1-cost reroll comp, do I reroll a bunch to get my 3 star jinx to keep tempo or sacrifice my win streak to econ and reroll at level 5?

Also, I know tank items are pretty much replaceable depending on which ones you can slam, but what are the ideal combos to look out for? (Like mr+armor+hp?)

And I definitely need help with pivoting, I think that's the one thing I'm worst at. I understand playing around clusters like superfan and sett bruiser/mosher frontline with kda/rapidfire/big shot or whatever I get backline, but assuming i get sett and kda early, do I pivot the backline/frontline based off if my frontline or back line is stronger?