Flinylock, when you're starting out, never "attempt" a landing. Fly a rectangular pattern around the field, with the closest leg right over the runway. Keep practicing this until your rectangle has 4 straight lines and 4 90* angles and the close leg is right over the runway.

THEN, start throttling back on the downwind leg (the leg opposite the close one), and practice getting low and keeping it over the runway, then power up and go around again. If you're not lined up right, don't do any wild "S" turns, just fly straight, and try for a better line-up next time.

Eventually, you alignment, speed, and altitude will all be correct and you just don't add throttle to go around. You will sort of "land by default" so to speak.

This approach eliminates the "ok, this time I'm gonna do it" jitters, because you never know when you're gonna do it, it just happens.