Applying to three schools is very few, especially if you need financial aid. It increases you odds of not having any choice in the Spring of senior year, or, worse yet, of being shut out.
3.15, ok rigor, 1130 PSAT: even with the legacy advantage, Valpo isn’t a safety - you’d need 3.75 GPA, 1270 SAT for it to be a safety according to the CDS.
Since you’re Lutheran, you should add a few from the following colleges: Capital Ohio (as the name indicates, located in Ohio’s capital), Muhlenberg (Philadelphia isn’t far), Augsburg (in Minneapolis, a safety for your stats), Concordia-Moorhead (as the name indicates, in Moorhead, which is a major city), Pacific Lutheran (in Tacoma, a major city in Washington State), Wagner College (in NYC).
Not Lutheran, but near Chicago, you’ve got Elmhurst which would be another safety. Lake Forest would be a match.
A good list would have 2 safeties (schools you can afford, like, and are 100% sure you can get into because you’re in their top25% applicants or so), about 3-5 matches (schools you can afford, like, and are pretty sure you can get into but you can’t be absolutely certain) and a couple reaches (you know it’s dicey but you can afford them).
For you, Valpo is an academic match (thanks to the legacy advantage), as is Loyola Chicago (high match there since you don’t have the legacy advantage). Run their Net Price Calculator to see if they’re affordable.
UDel is a big reach since as of now you don’t qualify for either financial aid nor merit. If your score can get to 1350 merit aid is possible.
So, you need to find 2 affordable safeties and at least 2 (probably 3) matches.
Pick from the suggestions above, as all are in/near big cities - explore the websites,run the NPC on the ones that interest you, then request information from each college that’s within budget.
Do you know your EFC?
Can your parents afford their EFC?
https://bigfuture.collegeboard.org/pay-for-college/paying-your-share/expected-family-contribution-calculator