No credit card required
Browse credit cards from a variety of issuers to see if there's a better card for you.
An app spree can hurt in terms of hard pulls, new tradelines, lower AAoA, and so on.
It may help in terms of lowering utilization, assuming utilization was high to start with.
Also, if you compare scores from multiple sources (different formulas), then the comparison may be meaningless.
Here's something to remember when it come to 2 things about app spree's & scores after INQ's and new TL's.
INQ's will cost you between 3-5 points per INQ ....YMMV
New TL's will cost you 3-5 points when they report per TL ....YMMV
Some people with thick files sometimes see scoring increases but generally you see a scoring drop.
So in your case with so many new INQ's/TL's that's about right in the Fico scoring dept.
The good news is in 4-6 months they'll recover and you'll probably be stronger score wise ........YMMV
Pay on time, in full, and after a few months you should be able to negotiate the APR down. Typically this is 6-12 months.