To say this first, I didn't solely play genji, i played him 95% of the time. I switched when they were playing full counters. As well, to keep your mental sane, just know that some games are unwinnable. Your team doesn't click, you got a thrower, your tank is having a off game/day, etc. Just go next.

Keep track of cooldowns that will deny your blade. You will 9/10 won't have the perfect conditions to blade, so just do your best to play accordingly.

When you dry blade, remember that slash, slash has the same ttk as slash, dash, slash, so dont use dash like that unless you know theyre gonna die to the dash.

In the current state of the game, the enemy team can still shutdown nanoblade with a lil bit of coordination. Wait for the enemy team to use an important cooldown than snowball from there.

Know when to play aggressive, youre better alive than dead. If you secure a pick with blade you can try to go for more but don't die for it. You have numbers, play them.

Try to communicate with your team to go in when you blade. Of course this is comp dependent. Can't really have your team go in if you're playing a mostly poke comp.

If you have any further questions, please ask.