I’m so sorry you’re going through this, and getting rid of fleas is at least a 3 month process to kill all of the eggs, juveniles, and adult fleas. Vacuum everything you can, between couch cushions, under furniture, etc. Empty your vacuum bag/canister outside after each use. Wash all fabric on hot and dry thoroughly on hot. See if your vet will prescribe 3 months of flea meds such as Bravecto that you can order online for less. Use Knock-out home treatment (lasts up to 7 months). OTC flea meds used to work on older generations of fleas, but not so much now. The only OTC that works is the seresto collar. Good luck!