How to offset my capital gains

Last year before I was able to sell the home I had to pay off a lien that was placed on my home but I forgot to report it in my taxes would I be able to report it this year as a loss with my capital gains I got this year from selling my home?

 

And if I use the money I got from selling my home and getting a new home and renting part of it out on airbnb and buying a car with the money from the home I sold and using it as an uber can I deduct any of it from the capital gains I got from selling my home this year? Like can I file the airbnb house fixing washer and dryer and utility and uber buying a new car as a depreciation to offset my capital gains from selling my home this year?

 

My gross income is 0 I have no job and no income and the only thing I have was the home I sold and it has capital gain even after the $250,000 filing Single, or more than $500,000 filing Married Filing Jointly the sale. So my question is what can I do to offset me paying so much in next year 2022 taxes? Like will I have to pay less of the house sale capital gains if the new home I have solar installed?

 

Also I have lost money in stocks and crypto this year will that help lower my taxes this year with the house capital gains?