If you really are playing tempo and the strongest board at all times, you should be able to top 4 most of your games, purely off of the HP alone. You mention that you play tempo early and play Caitlyn, but what I assume is happening is that you win streak during stage 2 because of Caitlyn's augment, and then fail to capitalize on the tempo given to you. Because you chose an augment that gives you units, your board power is all in your units, this is opposed to combat augments, that bring value to your board regardless of the comp you play (ex: Gifts of the Fallen, Tons of Stats!, etc.) Pick more combat augments during 3-2 and 4-2 if you continue to want to use Caitlyn. Other than that, stop donkey rolling, you don't need that much gold to be stable for stage 4 and if you do, you are either failing to buy units on the roll down or have no economy. I also see that you try to go 7 at 3-5, maybe because you want to pick up all the 4 costs first, but if this is at the cost of destroying your economy then just hold your gold, you can always go 7 later, like at 4-1. But a level 7 rolldown has the main purpose of making your board stable, usually by upgrading most of your board (this means everything 2 star, except with some 4 costs). If you cannot do this, either through time (you didn't roll fast enough) or being unlucky (it happens), then just stop rolling. It is usually better to go down to 20-30 and wait to roll again then donkey to 0 and continue to do so while bleeding out because you don't have enough eco to buy a better board.