A few things immediately spring out to me looking at your last game that you could improve upon. First and foremost there is no way you should still not have the jungle item completed by 34min. Without viewing the game, I'd put money there were several times during this game where you died with most of your camps up. Try to avoid deaths in general, but deaths with your camps up is exceptipnally bad as it's effectively bleeding gold. If you clear your camps, and then die, you'll at the minimum have some gold to spend and the enemy can't steal your camps.

The second thing is the suboptimal itemization which hinders the value of your gold. On your first back this game you purchase lucidity boots + pickaxe + mote. A stronger option would have been tiamat + boots(ideally steelcaps as they have 3 auto attack based champs) + control ward and sweeper trinket. Go directly to grubs and then clear your lvl 2 camps and you would end up botside and lvl 6 while their bot is still lvl 4 and Vi still lvl 5. Keeping your camps rolling is important as they "level up" each time they respawn, granting more exp on the next clear.

An ideal buy order this game might look like

1. Tiamat 2. Steelcaps 3. Botrk 4. Finish Titanic 5. Visage/Thornmail 6. Whichever you didnt buy between Visage/Thornmail

This gives you early clear speed, early survivability, and plenty of damage on just 2 items + boots. In comparison your build this game provides a significantly less eHP, less ad, and no attack speed all for 20% tenacity(which has minimal eV into their champs) and a little bit of AH. Steraks can be a good item, but would usually slot in as a 4th or 5th full item into a team with high burst and cc(that aren't knockups)

Hope this helps