Ask HN: How to land more web development and design contracts?

I'm a web developer and designer who's been doing this for over ten years. I've had a long list of clients that I've been working with for years, but during the past couple of years, I had a few problems and now I'm back looking for work, but it seems that the field has changed quite a lot, and I can't seem to figuer out how to bring in any new clients anymore. This is my portfolio if it helps: www.aladinbs.com

Any advice will be very appreciated.