The best in the world will do nothing for you if it sits unopened on your desk. Engineering mechanics is not a spectator sport. It is a language of forces, vectors, and equilibrium. You must speak it, write it, and dream it.
Buy Hibbeler if you plan to spend 10 hours a week working problems. It is the ultimate practice manual. engineering mechanics book
There is a myth that "I can just watch YouTube lectures and skip the textbook." This is a trap. Channels like Jeff Hanson or StructureFree are incredible supplements, but they cannot replace a good for three reasons: The best in the world will do nothing