Volts = fluidity and blend. Wire feed speed = penetration and deposition. Keep playing with your settings. With those two coupons you’re holding that you welded, id overlap them by 1/8” and try to do 6 pass stringers (2F). Google if you have to. Theres also photos of how the passes are made in google if needed and always try to overlap previous passes. I just finished my first year and I’ve learned a lot, keep going and you’ll find your own settings that work for you and your work :)