You could greatly benefit from Prof. Leonard Susskind's lectures on quantum mechanics and QFT on Youtube (Standford university's channel), which are very access

You could greatly benefit from Prof. Leonard Susskind's lectures on quantum mechanics and QFT on Youtube (Standford university's channel), which are very accessible. A great physicist who happens to be a great teacher and who gets all the deep interconnections involved. This is one playlist (he has many more): https://www.youtube.com/watch?v=JzhlfbWBuQ8&list=PL84C10A9CB1D13841 https://www.youtube.com/watch?v=JzhlfbWBuQ8&list=PL84C10A9CB...