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Is the credit union your only TL?
With only 1 TL you're going to struggle to build a good history.
Also, what are the month and year of judgements and collections? Recommendations for you as you move forward somewhat depend on how long ago your most recent baddies were.
I would pay off those collections and watch your score jump right up ! That's what I did when I started this journey about 2 months ago.
Then once they are up you can try for a Capital one card or something else.... try "cardmatch"
Best of luck !