Building with LEGO can be fun, but obviously buying tons of sets costs a lot of money and displaying them takes up a lot of space.
A nice alternative is using BrickLink Studio. This software lets you build LEGO creations using a 3D CAD-style software. You can not only build creations, but can generate photorealistic images. Here’s a recent virtual build of mine:
You can upload your creations to Rebrickable.com and download other people’s creations.
If you really want to build your creation, you can upload the parts list to BrickLink and buy new or used pieces. Obviously, this last part takes real money, but buying used pieces can bring down the cost.
The last one is Imposter Syndrome. I struggle with it too. Despite having worked in web development for 25+ years, I’m constantly finding myself thinking that I don’t know anything and any day now everyone else will realize it. It’s a constant battle to remind myself that I’m actually talented and knowledgeable and not just a huge fraud.