4:51 PM, Saturday January 2nd 2021
I suspect you also asked this question in a YouTube comment, so I'll paste over the answer I just gave there:
Assuming you only got through the lines exercises (since this video is from the ellipses section), I would recommend starting over. While a few months isn't a huge break, having a fresh start from Lesson 0 is definitely worth it to just put yourself in the right frame of mind. We are just talking about a few hours of work after all.