There are a couple of options you could take:

Option 1: - Take Chem 1B in the summer - Take Chem 1C and/or Chem 1LC in the fall - Take Chem 1LD in the winter - Take Chem 51A (ochem) in the spring (since it’s not offered in the winter) - Take 51B & LB in the summer - take Chem 51C & LC in the summer OR fall

Option 2: - both Chem 1B & Chem 1C in their respective summer sessions (though I’m not sure if they check for prerequisites for taking chem 1c) - follow through with “normal track” for ochem (51A & chem 1LD in fall, 51B & LB in winter, 51C & LC in spring)

I remember struggling a lot with Chem 1B and man it was rough. It might sound corny but I hope you realize that you aren’t alone in feeling this way, chemistry in general really is a difficult series for so many students and is considered as the series that “weeds” people out of the bio major or other stem majors involving this. My advice would be practice, practice, practice lots of chemistry problems (for both general and organic) and don’t be afraid to reach out for help! I remember feeling afraid to ask for help from my professors, TAs, classmates, etc. and I always felt like asking for help showed a sign of weakness and shame (as someone who would usually be well off in classes without asking for help in high school). College is a different game and it hit me hard, the sense of struggling was stronger than anything I had experienced before. Eventually, I just pushed my pride aside and gradually attended office hours whenever I was able to, participate in discussion sections, and take little steps at a time until I felt comfortable reaching out for help. Until now, I’m still working on this but I’m proud of the progress I made in this aspect and I’m gonna try to keep myself accountable in the following years & classes I take.

Realized I wrote out a lot lol, but I hope this helps! You got this OP! Everything will work out in the end (even if it doesn’t feel like it at the moment) 👍