New to sex and struggling with performance- Need Advice

Hey everyone,

I’m new to sex, and I’ve been having a really frustrating issue. Whenever I try to penetrate, I either lose my erection or ejaculate within seconds—sometimes even before fully entering. It’s making me feel really unconfident about my penis, like it’s not even in my control.

I know this is probably a mix of nerves and inexperience, but I’m not sure how to fix it. Has anyone dealt with this before? What helped you improve? Would any sex toy help me prepare better? Any practical tips or mindset shifts would be really appreciated.

Thanks in advance!