Age 18 & I want my penis bigger, what can I do?

Penis can be enlarged in girth as well as in length.
For more info please look at BayAreaPenisEnlargement.com, Phalloboards.info

There are various way to perform male enhancement today. One of the most safe and promising techniques is doing it with filler. There is minimal downtime and a very low side effect profile. With other modalities such as surgery and implant placement, there are high risks associated with it such as major scar tissue formation, long recovery times, loss of sensation to the penis, high infection rates, etc. Always make sure to see an experienced provider for any procedure to ensure high satisfaction rates and safety.

The average penis size is between 5 to 6 inches in length, and 4 ½ inches in circumference (erect, not flaccid). These dimensions are important because they stimulate the vaginal nerves differently. While lots of men think women want a longer penis, it is actually a larger penis girth that many women prefer. Which makes sense, considering their vaginal anatomy.
The vaginal canal is filled with nerves and receptors along its walls—which can only be triggered by a penis with more girth. Additionally, this extra friction can make sex more intense and enjoyable for the man as well. This makes girth the most important penis dimension for sexual satisfaction and drives the popularity of penis girth enlargement.
The penis girth enlargement procedure involves microinjections of our proprietary filler just under the skin—no general anesthesia, scalpels, or stitches. In your penile shaft, this filler stimulates your body to produce more collagen, resulting in an impressive size increase.

Thank you for your question and the photo. 18 is a bit young to consider surgery on the penis. Perhaps you should wait a few more years. The most efficient way to enlarged to the size of the penis with the highest safety profile is using your own fat. Fat transfer along with platelet rich plasma is a fantastic way to improve the size of your penis. STIF, which refers to the use of fat along with platelet rich plasma improves the girth more and then the length. More information on is in the link below.

At 18, your body is still maturing, and your penis is likely close to its natural adult size. It's important to set realistic expectations about enhancement options. Most non-surgical methods for increasing penis size, like exercises or pills, have no scientific backing and could be harmful.

If you’re focused on improving overall appearance or confidence, certain regenerative therapies can enhance girth modestly and improve blood flow, but these are typically for adults with specific concerns like erectile dysfunction or aging-related changes.

If you have persistent concerns, it’s a good idea to consult a trusted healthcare provider to discuss your goals and ensure your expectations are realistic and safe. Confidence and self-esteem often come from understanding your body and prioritizing overall health.

You have the following options:1) penile fillers to increase girth2) invasive surgical procedures such as fat transfer, suspensory ligament release, silicone implants, alloderm insertion.
We do penile fillers which are safe, quick and natural appearing.

Penis enlargement surgery can be performed at the person's own request after the age of 18. You can apply to an experienced clinic for penile enlargement surgery.

So it's natural for a guy to always want a bigger penis. I think the best way to go would be to do PRP injections at your age- no major changes expected maybe a little increase of 1 inch or so.