Guys help I know nothing about organic chemistry and I’m taking it this semester

Omg guys I’m major in chem engineering and this semester I’m taking organic chemistry and I don’t get anything. I mean my foundation on chem is actually kinda weak bc I got C+ and D in chem 1 and 2, respectively. And I don’t want to get such grades in organic chemistry I actually want to improve but since the two lectures I took I don’t understand ANYTHING. it feels like a complete gibberish, I paid attention and took notes but it’s just not adding up, it doesn’t make sense to me whatsoever. Soooo any recommendations? Good YouTube videos or methods that could help?
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I also get told things like “how is u majoring in chem engineering and you don’t know those basic stuff” not just organic chem things basically anything related to my field and I feel sooooo insecure bc of this but I’m trying to learn of course I ain’t gone know everything ☹️😢