If I were you, somehow you were guided to picking the Match Up Solid and the spare ball. Hopefully these decisions were done in concert with the pro shop operator/owner. If so, he may know how you've been doing or at least has an idea how you're bowling now. If not, go see that PSO and ask him to watch you throw a game or so. Then march into his shop and have him help you decide what ball(s) you should consider.
When I got back into bowling after 20 years being absent, I found that my old rubber ball wasn't going to do anything like it did previously. My first reactive resin bowling ball was a Track 300T and it was similar in specifications to your Match Up Solid I think. It served me well for two or three years. I, too, thought I needed a more aggressive ball after a time. I went too far though I think, but it surely worked for me okay. Not great though.
I'd suggest that you take baby steps. Consider going up to the Thunderline of Storm bowling balls or similarly spec'd balls from other companies.
Good luck! Have fun!
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