Alexzander, there is certainly strong demand for welders and there are opportunities available for both welders with and without formal education. There are aspects of welding that require more technical training and education, however. In order to have the most opportunities, better job stability, and to improve your skills and education, I suggest getting formal education in welding. If you are considering a career doing rig welding, pipe welding, nuclear welding, tank welding, or structural welding, then having the formal education will be very useful and, in most cases, required. You can often gain that education while working, depending on your location. There are several certifications associated with the various welding procedures. You might consider spreading those out over a few years while working in a beginning welder role.
All the best,