To get a really hard erection, you should first take care of any problems that might be causing it. First, make your health a priority by eating well, working out daily, and dealing with worry.
Quit smoking and drink less booze because they can slow down blood flow. Talking to your partner about your wants and worries can help you deal with performance nervousness. To lower your worry, try deep breathing or meditation as a way to relax. Make sure you get enough rest, because not getting enough rest can make it hard to be sexual. If you think you might have a health problem like diabetes or heart disease, you might want to see a doctor. Also, drugs like Viagra and Cialis can help get more blood to the penis, but you should talk to a doctor before using them. Remember that the best way to get and keep an erection that lasts is to be patient and consistent with your healthy habits.