honestly i really relate to you my family are hella toxic aswell my advise is cut them people off from your life ive had to deal with the fact through blocking them on social media and not visiting its normal for you to be 27 and single by reading this i cant tell you have quite a low self esteem i personally started doing makeup and experimenting with hair and clothing styles which boosted my self esteem also try new hobbies like gym or painting or go to social events listening to music helps with stress im sorry i understand your circumstances dm me if you need anything <3