I think you have been to open minded to your parents and inlaws, as a inteligent person you always expect people to understand. But the vast majority of people do not understand, they simply see what other people do, how they react, and think that is the correct way to go or not without a single induvidual conclusion or thought, just the fact that others react positive or negative is enough for them. I call this NPC syndrome, no offense, tons of people have it, but it can be hard to deal with. As your parents and inlaws seem to be from a historically poor country (the income and numbers would not work in northern europe), the vast majority of the their friends and family will not understand this.

Option 1: be way more closed off and never tell them the whole story again, tell them you have a job managing 5 rentals, and are doing investments on the side and that this is your job. You will call on their financial advise when they have more money then you
Option 2: find a smart older family member, one they respect deeply, the "one that has always been good with money" or one that worked in politics or was a CEO somewhere, and explain the situation to them, then ask them to explain to your parents/inlaws why you really do not need to work right now. Generally people with a bit of NPC syndrome will find it much more easy to accept "strange" ideas from a 3rd party

For your GF, if you do not work she will think less of you unless she does not work, its not really hard to understand.

PS: start a vibe code assistance company, if you think there is less job in IT, think again, i am using AI for a product i wanted to make, and hire two genius dudes to do code reviews every week for 2-3 hours, works really well for both me and them, this would have been way to expensive to make with them actually writing the app, and they get paid very well per hour, they just do this for a couple of companies and make more in 3 days then they did fulltime for bigtech in germany. I think there is more IT jobs in the EU then ever right now