I am reading Spivak as i love pure mathematics and want to go in that direction but i also want to learn physics as well. I would like to learn classical mechanics. Do you think i should wait to finish spivak first and then do this or can i do them both at the same time as a lot of the work in spivak isnt used in physics. What do you think i should as i am getting stressed and anxious for some reason. Also, i have trouble just sitting down and reading the textbook. It just feels uncomfortable and i get distracted. However, i am really interested and want to learn it. I just need to get a structure in my head of what to do.