It's time to get creative and have a home yoga and fitness space that works for you. That might mean you need some tools to support you. You can get creative with objects inside your home, or if you can invest in props. Before you invest in props, it's important to know their use.
Mats: Get a yoga mat. It is important to invest in a high quality, heavy mat that won't slide on the floor, and has enough thickness to support your joints. AVOID those squishy exercise mats at most stores. Those are designed for stretching on the floor, not lungeing and down-dogging on it.
Truly, If there is one thing that will help you feel more comfortable in your practice it is a good quality yoga mat. Yes, most mats are above a $75 price point, but this is because a good mat should be made from legit materials and should last you for at least a year if not several years. Think of your mat like running shoes. They should be high quality and they should last.
Blocks: Blocks can be used to bring the floor closer to you. Consider taking extended side angle, and you want to be able to get a little bit deeper in your hips but you can't quite touch the floor without slumping. A block underneath your bottom hand helps you maintain the alignment of the posture and get a little deeper because it brings the floor up. Blocks can also help you activate muscles by squeezing it. You can press it between your hands in Upward Salute to engage your shoulders and prep for handstand, or you can squeeze it between your thighs in camel pose to help you engage your lowerbody and core muscles to protect your back as you lean back.
Straps: Straps are your 'go go gadget' arm. If you can't reach your toes in standing hand-to-toe pose, or in seated forward fold, use a strap! Straps are also belts. If your elbows keep bowing out in chaturanga, use a strap to train them to stay a little closer in.
Bolsters: Bolsters have so many amazing uses. But here are just a couple ideas. Bolsters create lumbar support in reclining poses. Bolsters also soften the joints like sliding them under the knees during savasana (which creates an AWESOME release for the low back, try it!)