There are already free solutions with huge user bases
For forum like discussions you Reddit
For relay chat like discussions you have Discord
Then you have Facebook Groups, Instagram, LinkedIn, Twitter/X etc.
You can easily hop on a free voice or video call with anyone using Zoom, Google Meet, etc
That said, maybe I'm unsure what you mean by "coffee chats" or what you would be looking for or providing that is different from the free, and very popular existing solutions.
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Here is your first piece of genuine advice.
Use paragraphs.
Good luck.
The actual key is either having a need for money at a young age and figuring out a hustle and/or having the understanding that selling your time to do 100% of the work for someone else to make 99.9% of the money is absurd.
I'd go ahead and say the best entrepreneurs fall into one or both of these categories
If you can find a cheaper monthly hosting, and don't really expect this to be anything more then a hobby, then I suppose go for it
That said, your UI/UX feels mega dated, very mid-90's.
In order to really get a userbase, especially one that pays, you would need to revamp into something far more visually appealing and modern and offer alot more then what you currently do
trakt.tv is a good example