Sorry for the bad news. People here are NOT trying to rain on your parade. Many here have made the same mistake that you are trying to make.
They are trying to keep you from losing a ton of money on this decision.
It is amazing how people will try to rationalize that a poor matchup will be OK.. But we see it all the time.
If a bigger truck isn't in the cards right now, then pick a lighter trailer.. It is better to have a TT that you can actually use than one that never moves because you are uncomfortable towing it.
Welcome to the RV forum and good luck