Well I couldn't really see those links but I can't tell you much without knowing mains/lanes
But that aside:
Buy wards regularly and a pink at first back(Exception:
for junglers gives a free ward on top of a trinket)
If you aren't doing well in lane and come out behind, learn how to be carried by someone that is ahead, you may loose some glory from not getting kills, but having a person ahend in a soloqueue game is a good thing even if its not you
If you are jungleing just remember that you need gold too, so you stay in the jungle a little longer between ganks, but on the same note- try not to take kills unless you are playing a carry jungler like Yi, Kha, Or Lee
As far as mid goes- try to pick safe picks and counters As long as you know how to play them, but if you do want to pick a less safe champ try to pick mid last to maybe counter pick or avoid counters( you can also convince a teammate to swap with you)
Top try to pick someone who can make plays(Ignore if you have a jungler that can do that) champs like
and
have decent damage and are tanky-They can also pick off a target easily and catch someone out.
Another viable pick is a lane bully tbh i don't know much about lane bullys but some examples are
and
which excel at laneing and their damage can fall off late because of high base damage and low scaling.
As far as supporting goes, just look at who is popular because they are popular for a reason Examples:
(also remember a
because "Vision wins games" -All support mains
And I have no advice for adc because I suck at adc