Purchasing and resetting neuromods

In Prey you can find Neuromods to purchase upgrades in a skill tree.

There are 3 categories: Scientist, Engineer and Security. All of these have a lot of perks and require multiple neuromods to purchase skills.

I have 2 questions about this ability system:

1. Are there enough neuromods in the game to purchase all the skills available?
2. Can I reset my neuromods (early) somehow if I accidentally purchased something wrong.

Solution 1:

1. No. You will unlock 3 more categories later, you can't find enough neuromods to get all skills. You will be able to craft neuromods later though.

2. Not as far as I know. I have not found any way to reset your skills.