I’m not sure how you’re planning on entering college without taking a standardized test since they are required by almost every college and university.
Its easier to get into a decent university as a transfer student than entering as a freshman. GPA doesn’t matter as much (2.5 is the minimum for transfers at some schools) as they see that you are able to handle college level work. At this point, higher level schools aren’t likely to take a chance on someone who has a lower GPA and might become a part of their student loss after freshman year because they couldn’t handle the work.
My advice, having worked through my own college educational needs and advised many of my friends, is for you to take two years at a community college, preferably in an Associates degree program. If you have a degree from a two year school, colleges have to take even lower grades in some classes that they might not accept on a pure transfer basis. Only D I’ve ever gotten in my life was in Spanish. But the university took it because I had a degree, not just transferring. Doing this, you can also get an idea of what it is that you want to do when you transfer to a university as you take a couple of classes in the subject area that you get your degree in.
If you transfer after one year of work, the requirements are higher than if you transfer after two years, FYI.