OK so I started a new game because I kind of messed up and bought the dress and swimsuit (yes I was using cheat mod) I restarted because I feel like the game is not progressing and I'm now following the walk through but in the walk through it says I need the buy the swimsuit for Alice in order to not lose her but iirc you can't have that much money, do I just use money mod again or just let Eric buy the swimsuit?
That's where the online bank comes in.
It is actually possible to get enough money, but the game is designed in a way that you should not. On the last day where it is possible to buy the clothes (Max will tell you so), you can look for a online bank and get a loan.
Even if you DO have enough money, do it anyway, because if you don't, the bank will not be accessible for the rest of the day.
And yes, the game starts slow, there was no need to restart. Read the hints in both character profile and opportunities and visit the girls in different situations at different times to discover new opportunities.