If you don’t plan your skill progression you will not improve. You will not get good just playing over and over. Ask yourself, what do pro players do that I don’t?
Do you watch pro games on youtube to learn builds, comps, strategies, how to soak, how/when to do camps, etc etc?
Do you know how to make a kill? SetupCC->FollowupCC->damage?
Roles - Pros always play the same role. Even pros can’t excel at more than one role. Do you and your friends do the same? Each of you should pick a role, choose the top meta heroes for that role and stick to it, learn them, learn the builds, learn the tricks with them.
Drafting - Do you draft in random order or do you have a plan?
Meta comp is tank, bruiser(usually the off-laner), healer, ranged aa, caster aoe/burst.
Draft order, 1st pick: Tank. Mid picks: DPS Ranged AA, DPS Caster AOE, Healer(after opponent dps to counter them), Last pick: Solo laner, usually bruiser. To be picked after opponent solo laner to have a favorable match-up.
Watch how pros draft, you’ll notice the beginning of the draft is always the same. Tank is the priority pick/ban, ban Maiev. The hero pool pros use is quite limited, for a reason.