Try the hitter type of Techies!
Dont too focus on planting bombs, try to get LH.

You can get golds from kills by bombs on early game.

Also, you're good at range. Do not initiate clash/teamfights.
After someone initiate, go join it, and hit with your nice attack speed.

P.S.: Leave the "hitter" role for Techies if you're underfarmed on the early game. Or if you think that you can't handle your gold. Or if you think this guide sucks.

P.S.2: This guide is just for fun.