It seems like you have been experiencing pain during intercourse for over a year and have tried different treatments without success. One possible solution you could consider is using a product called Replens™, which is available in pharmacies. This product helps to hydrate the vaginal walls continuously and is typically more effective than using personal lubricant during intercourse. It is recommended to apply Replens™ three times a week. Additionally, using personal lubricant during intercourse may also help alleviate the discomfort you are experiencing.