[Clubber]

At 1 year: Hang in there, only 39 more years to go until retirement.

At 5 years: Hang in there, only 35 more years to go until retirement.

At 10 years: Hang in there, only 30 more years to go until retirement.

All jokes aside, the best advice I got that covers all the years is, "When they give you your first assignment, bust your ass like you've never busted your ass before. Do it fast and perfect as you can. That will set the stage for the rest of your time there." I got into the habit and do it always. Once you show people you can "get stuff done," they will bring you with them when they move jobs. You'll always have work and you'll never have to talk to a recruiter again.

You should learn how to build systems. Build stuff in your spare time, full applications so you understand what it takes to build them. Ideally you would want to build a product that people use so you understand what it takes to actually build and ship a product. Setup the server that hosts your applications. Setup the DNS records and register a domain name so you know how all that works. Also, pick an industry like healthcare or banking or even tech, that way you're not a programmer you're a "financial industry programmer." Each industry has it's own nuances and regulations it has to deal with. Knowing these things adds value.

Mind the burnout. If you are in the US and get almost no vacation time, mind it carefully. Burnout will make you hate your job and lead to more burnout. It can last months, sometimes years.