Erectile dysfunction with incomplete rigidity is often related to blood pressure, stress, anxiety, or blood-flow issues, and some BP medicines can also affect erections. The first step is to get your BP well-controlled and review your medicines with a doctor. Regular exercise, weight control, quitting smoking/alcohol, good sleep, and stress management can significantly improve erections. A doctor may also suggest safe long-term treatments (like lifestyle therapy, counselling, or specific medicines) after proper evaluation; please do not self-medicate.