My blackjack game shows weird values


Hello, I found the hidden blackjack game course while searching for it in google (maybe it's in pro version). So, I follwed the 3 mini courses and finally added some enchancements to my final game. However, the game shows weird values while executing (wrong sum especially for user). If anyone could help me with some hints that would be awesome. Also there are some comment lines where I have some doubts and issues. That would be great too XD

The link to the code is down below: (so to save space and for better view and console stuffs):


Please post a link to the exercise. Thank you.