Hi, though the caption reads "premature ejaculation" you seem to be concerned about erections. Well, sure works but it is not an all in all solution. ED occurs for a variety of reasons and under different scenarios. Unless we understand the root cause, mere consumption of drugs will not help you in the long run. That's probably is what is happening to you.
Next Steps
Please consult a sex counselor/therapist in person. At least through video/phone appointment.