Put this game in this Captain (People not in AWF shouldn't be able to see it)https://www.warlight.net/Discussion/?ID=101023
Your main mistake was the blockade in Africa, like Ryrio said you already won the game on picks. You played well and luckily you didn't end up with a random. You might have actually expanded too much, bonuses like Europe or East Russia take a long time to pay off.
Also, here's an equation for how many picks you should make:
Amount of Players in the game * Amount of territories each one receives
This way, you have a 0% chance of getting a random pick, trust me, it is worth the effort.
The best way to get better is to play people that are better than you. I'm like 3-8 against jz and he has taught me a ton. Invite me to a game if you want.