I find it really rewarding when I make something with my own two hands. I develop my skills and I get a nifty thingamajig that I can either use, sell or give away as a gift.
Here is a list of my physical hobbies that you could try out if they sound interesting. For all of these hobbies there are countless of tutorials on the internet, and if you think you can't come up with your own ideas then you can start off by copying what other people make. After a project or two your own original ideas will begin to grow. Don't think that you need to spend lots of money on tools and resources right away. You can do just fine with a minimal amount of tools.
Leatherwork - I have made money pouches, bracelets, a box with dividers for small glass vials, tags, etc. Few tools are needed to start out.
Sewing - Borrow a sewing machine from a relative or buy a used one, then learn to sew whatever you want. You can make costumes, tablecloths, T-shirts, children's outfits, skirts, capes, pirate shirts, you name it.
Jewelry-making/wirework - Make necklaces, earrings, earcuffs, bracelets, custom straps for a wrist watch, or chainmail armour (my boyfriend did this, really not that hard and you can do it while watching anime).
Woodwork - Make tons of cool items for your home like fancy shelves, jewelry boxes, bookends, planters, photo frames, etc.
Painting - I use acrylic paint because it is cheaper than oil paint and dries faster. Mixing colours is not hard at all after a tiny bit of practise, so you won't have to buy a bunch of different colours. I only use the three primary colours and white. If you don't want to spend money on canvases right away you can start off by painting on pizza boxes and other scrap cardboard. And if you do woodworking you can make your own easel and paint palette
Gardening - I have a tiny greenhouse and a small patch of land where I grow my own vegetables. Not enough to keep myself away from the greengrocer but it is fun nontheless. If you only have a small terrace to claim as your own outdoor space, do not fret! There is lots of room for planters along the railing (again hinting at the aforementioned woodworking for custom made planters fitting perfectly on your terrace to get the most out of your space )
Polymer clay crafts - Polymer clay is a plastic clay that comes in all kinds of colours. Shape it into what you want (beads, figurines, miniature cakes, etc.) and then bake in the oven for half an hour. You can make pretty much anything you want in polymer clay.