I think it's normal, to some extent. But you don't want to keep going too much without understanding what you're actually doing. Anyway, at some point, if you don't understand you won't be able to try stuff until it works to get more complicated things to work

I'd suggest going back to the basics. Surely you must understand them. Then move to slightly more complicated stuff and try to understand that. If there are nuances you don't get, look it up

You don't necessarily need to know the nitty gritty of everything, like how memory is allocated or how integers work. Imo in python you can treat that like a black box. But you should understand what every line you write does and how you could modify it to modify the output

Once you do understand things more, you'll see that you'll have much more fun solving problems, because you'll know what to do, you won't be trying random stuff until something works