<p>You obviously want to do engineering for a reason. If you’re willing to put in the effort, you can get BETTER at math once you’re in an engineering program. It seems like you aren’t even bad at it to begin with, since physics uses a lot of math. Do what you can, but don’t let your perceived lack of math knowledge deter you from pursuing something that you want. Many people I know who got into great engineering programs aren’t math whizzes. They just aren’t super terrible at math. And even if you are, if you have the correct motivation/perseverance, you don’t have to stay terrible (I’m being redundant so I’ll stop here).</p>