Once you study how you use your home and how your would LIKE to use it, make a list of goals.
Then determine how to get there. Need more storage? Is it as simple as editing what you have or would an added shelf or two solve the problem? Perhaps you need a quiet space to study or paint or more comfortable outdoor space.
Just because you have been using a space for a specific purpose does not mean it can’t change. Try to look at your space with new eyes. If it is too difficult ask a friend on where they would put the (fill in the blank) if this was their home.
We will probably never have the luxury of time at home that we do now. Since you have been spending more time at home you know now more than ever, what works and what doesn’t.