Before toi make a decision, do toi first gather as many relevant facts as time permits?

In theory, yes

I make an active effort, but I'm really kind of bad at confirmation bias

Yes, for larger decisions at least

It depends on what the decision is about. And me being autistic with Asperger's, I'm terrible at decisions

Alot of times I do and I follow through after obtaining data but I am also very prone to be impulsive depending on mood

Well, naturally. I have always been characterized as the Careful Type. I never rush into a decision before I take as many factors as I can into account. I used to dive right into things when I was younger but most of the time, the results were the exact opposite of what I was expecting so I learned a lot XD I might still be pretty quick in deciding over certain matters but for the most part, I am quite a Calculating Person actually. Sometimes to an excess. Overthinking has always been one particular weakness of mine. Honestly, it is all about what you're dealing with at the moment. Some occasions require fast thinking while others laying out a plus detailed plan. People need to be able to distinguish between them and adapt to the situation accordingly !!!!