I'm currently sitting at 1400-1500 MMR and I favour my own style of aggro strat. The way this usually works out is I tend to dominate early and mid rounds but once the game goes into late-game units. I tend to run out of steam.

A lot of it has to do that my brain is just not well suited for the decisions one needs to do in late-game. I routinely run out of time, making decisions, and am left with credits I couldn't spend, or units placed in a last-second panic. So I'm trying to figure out a way to end the game before it goes too much into end-game.

I've tried a few approaches such as using a lot of instant-effect cards, and spending money on extra speed etc, but it doesn't always work.

So I want some advice. What is the best way to utilize a tempo advantage into closing a victory?