great video you made there. Congratz
However your setup is not perfect. You used a heat module 5 while you could use a heat module 6. Why use a lower level module when also being able to use a higher one?
Next thing is it does not matter how much HEAT you have, it is more important to COOLDOWN a lot of heat. Your mech had 115/27.
Try build a mech with 2x Regeneration & Cooldown Module 2 and 1x Heat module 6 which will give you 65/36 energy and 97/48 heat.
Of course you will start to overheat a little quicker FOR THE FIRST TIME but it will pay off over time. And you can still use a cooldown kit to get down to 0 when needed.
This will also allow you to also use shields because at level 20 you can get 30% shield which will effectively multiply your HP with a factor of 1.3 which will be about the same a single armor plating.