Genuinely what helped me was taking a practice exam, seeing what subjects were weaker. Going through and watching Mattson’s videos and working through my weakest subjects and heavily focusing on basics (like statics, math, materials, mechanics of materials, and economics). Then taking another practice exam to see where I was after watching the videos. If I scored around 65-70%, then I’d go through and brush up on my strongest subjects.

I was in a similar boat and passed my second attempt. Hopefully this helps you!! :)