Taking Online Classes During School?? Help

So currently I’m a junior in a regular public high school and I’m trying to drop AP Calc AB (I know it’s terrible but I’d rather not get a C, D, or F) and my counselor wants to replace it with a non-weighted elective through an online course my school uses. I already know not taking a Math my junior year would look terrible (I’m going to try and take it again this summer during another online school I’ve used once before), but how bad would taking all weighted classes physically look combined with one unweighted elective online? It’s the only thing my counselor suggested but I have a feeling that it would look incredibly terrible, is this true? Also can someone confirm trying to take Calc again during the summer would look okay (regardless or not if you’d think I’d do poorly again lol). Thanks so much!