I'm sorry to hear that you are experiencing difficulties with your foreskin. It's important to seek medical attention for this issue, and I understand that waiting for an appointment can be frustrating.
In some countries, steroid creams for the treatment of tight foreskin (phimosis) are available over the counter, but in others, a prescription is required. If you have difficulty accessing medical care, you may want to consider speaking with a pharmacist to see if they can recommend any over-the-counter options that may be available to you.
However, I strongly recommend that you see a healthcare professional to properly assess your condition and recommend an appropriate course of treatment. Tight foreskin can be caused by several underlying conditions, and treatment may vary depending on the severity and cause of your phimosis.
In the meantime, you can continue to try stretching exercises, but be gentle and consistent with your efforts. Avoid using force or causing pain, as this can lead to further issues. Good luck, and I hope you are able to find relief soon.