The build is bad, like real bad. Your stat allocation makes no sense.
You can't really tank anything with 4 CON and 9 INT is way too high, you only need 7 INT to unlock special chemical pistol feat, and your dexterity is just terrible.
You can probably brute-force your way through the Depot by sneaking around most of the enemies rather than fighting them and cheesing the ones you have to fight but i'd suggest you to make another character.
Here is an example chemical pistol setup:
https://underrail.info/build/?CAUMBgMGAwcyHgAAHgAoIxkeABQeKB4UAAAAAAAAFAE5JCbCkVbfvwHigh dexterity is essential and you really want to put any stat point you have when levelling up into DEX so your attacks cost less AP. You level up guns until 70 base to unlock execute, then around level 14 you can grab versatility and put skill points into melee. The way versatility works, you can put points into melee (which scales with DEX) and then it will be later converted into points in guns (which would normally scale with PER) if it's higher, so you can lower AP cost of your attacks and level up your guns skill at the same time. With high Perception and on lower levels, versatility doesn't really do anything.
You can make incendiary/cryo chemical pistols to deal with the mutants but the parts are rare to come by before depot a, mostly it can be found randomly sold by gort, colton and blaine.
Cooked Shot feat is also very important for chempistols because it gives you AoE.
In regards to Traps skill, it's useful but if you don't mind dying a lot then you can simply memorize where the mines are and don't step on them or use Detection goggles to find them.