Yet another request for advice on schools.

[FurthestSights81]

Hey guys, I feel truly blessed to come across this forum and have been taking as much time to browse through some of the threads and wiki program plans when I can. This is a lot of information and I was wondering if someone here could provide some insight. I have attended community college in the past (2015) and have been working and saving for school  possibly to attend WGU in there Information Technology Management program. However, this forum has peaked my interest in the variety of other schools like TESU. I have a few courses that I passed in from community college. 

A little info:
- Mid 20's 
- Wanting to gain a bachelors degree preferably in STEM like comp Sci, CIS, MIS, or even accounting. 
- Main interest: I'm interested in science and stem subjects its hard to choose anything specific so I think my best option would be a degree that has a broad range of industries. I do love astronomy and have been studying it as well as observing the stars most nights. I realize astronomy is very specialized and I see mostly requires a PhD. I like the idea of being able to attend a grad school like Georgia Tech as I live around the area yet I dont want to get ahead of myself.
I have a couple courses I finished in community college. Some I passed but a couple I failed due to just being young and distracted. When I can access these transcripts I will post them. Based on WGU transcript evaluation for I.T. Management specifically. These courses could transfer: 
- English comp 101 which I recieved a ©
- College algebra in which I recieved a (B) WGU's  course equivalent is called "Applied Algebra"
- Music appreciation INTL I have an (A) in. WGU's equivalent is "introduction to humanities"

These 3 courses add up to 9 competency units awarded. which is 7.5% completion of the the program. Not much but its something. 

I had some questions.
I really like the idea of finishing my bachelors and going for a masters, but I don't want to get too ahead of myself as I even like the idea of a PhD and research but really wont know until I actually have the opportunity.
- What are your thoughts on TESU and the current course of action via Study.com/ SL, etc. VS WGU with the same approach? They both have a variety of undergrad programs. I find myself a little lost as to which I think is best. I have time to study, however I haven't been in school for a few years and don't want to overwhelm myself. What would you guys do?
- Also in regards to associates degrees. Do you guys think it may provide any advantage towards a Bachelors or should I just focus on the bachelors? which do you think would help in regards to time? I ask because a few threads I've read seem very welcoming, and provide very thorough experienced points of view.