At least with Statics and Mech of Materials, you should have a working understanding of Forces, Reactions, Stress and Deformations. IMO, at this stage, it is not just knowing what these terms and several others mean, it is a matter of having mental images forming rapidly and accurately of them when learning. Simple structures don't really need computer modeling, but you can't model a more complex structure if you can't model a simple one.
Next would be getting more acquainted with connecting members to achieve a more complex structure. Become more familiar with the 6 Degrees of Freedom (more accurately, the 6 methods of restraining a connection) and what they mean in terms of deformation and load transfer at a joint of 2 members or more. Get more familiar with what each connection might look like in terms of steel W-shape or a wood solid rectangle. Plenty of picture examples on the internet. Also become more familiar with structural components. In my terminology, it takes a shape (I, C, solid round etc) and a material (steel, wood, concrete etc) in combination to be considered a structural component.
When I say, "become more familiar", I mean get faster and more accurate at mentally picturing these things when someone is explaining something. The slower you are at getting a clear mental image, the more you will miss of what the Professor is telling you. While the picture is forming, you miss the next few words or an entire sentence or the image never gets formed so you have some statements to consider with no reference of what to apply them to. "When you have a Pin-Fix beam with a midspan torque, the reaction at the moment resisting end . . . . " That is just an example of what you will hear in the future, but easy to picture if you know the terms really good. Easy to computer model, if you know what the terminology depicts.
You may already have these things accomplished, I have no way of knowing, but if I didn't that would be my next step.
Also, you will get a variety of advice probably. It is not pick A, B or C, it is consider all of them and choose what to combine or modify as needed for what fits for you. We all mean well, and we all have opinions.
Good luck.