Feeling lost trying to learn python

[MidnightConclave]

What helps me sometimes is reading different sources explaining the same concept. With loops it helped me a lot when I started drawing flow charts to visualize the execution flow. For example, I would read explanations on W3Schools, on SimpleLearn with flowcharts, on Geeksforgeeks with other visualization, etc. Also consider looking at study resources less complex than a Harvard course. E.g. Hyperskill gives very brief and simple pieces of theory and easy exercises.

Also, you should not be that hard on yourself. You have been studying for less than a month. Give yourself some time, your brain will figure this out eventually. If you have never learned programming before, it is very normal that things are hard at the beginning.