Why do you need a space for yourself? Because, you're worth it.
Creativity can come and go, often times I will find myself caught up in an artist block. Sometimes the lighting isn't right, sometimes I can't get comfortable. Sometimes there is too much or too little noise, and sometimes, it just doesn't feel right. Dedicating a space where you can unapologetically be you and have the physical and mental space to deal with these hurtles can benefit you in the long run.
Of course I will acknowledge this is not always available to you. I am very privileged to be able to afford an extra room in my living space to dedicate to myself and my art. Before this was a possibility, I would find a small nook in my house or claim my favorite spot on the couch and completely immerse myself into myself. Knowing your needs is a key component of this task. Some things I have found helpful are:
Noise canceling headphones.
A favorite lofi channel.
Comfy clothes and a blanket if desired.
A set of my favorite pencils or pens.
A snack and a drink.
Setting the mood around me will often make it easier for me to create. I find that if I am comfortable, safe, and unbothered, I will create more freely. Going out into public is a great way to also gain personal space. As an introvert who experienced a lot of anxiety from the pandemic, I had a really hard time with this at first. It can be hard to go outside of your comfort zone, but I have found that you are mostly left alone when you are out in public. Some comforting places to create outside of the home are:
Coffee or Tea Shops.
Diners or restaurants with low traffic so you can be at your own booth or table.
Park picnic tables or covered areas.
Nature reserves if this is accessible to you.
Don't forget: taking time and space for yourself is okay. You are allowed to be selfish, in the best way, because you and your art are worth it.