while people are waiting for Mr anti Fun to update trainer, there is a mods i can recommend to make the game easier called Stellaris Cheats
Or you could use the ingame console. i'll list the ones i use most:
Battle
Invincible - ships take no damage
Resource
Cash - Add 5k Energy
Minerals - Add 5k Minerals
Influence - Add 1k influence
Unity - add 5k unity
* if you want more than 5k just simply enter the amount. ie cash 55555 will give you 55,555 Energy
Terra-forming <First you must Select Planet>
planet_size 25 -Change size of planet * Do not go above 25 you'll break the game
planet_class pc_gaia- Change planet type to gaia -
planet_resource minerals 50 - Adds Resource type to planet
For a full list of planet types and more console commands included check out this site:
http://stellaris.paradoxwikis.com/Console_commands