Welding woes...frustrating!!

I'm considering buying a better welder I like this little welder for small stuff it has helped alot on small projects like fixing my lawn mower deck welding washers to remove my lca bushings etc but it doesnt seem to like to run a bead longer than an inch or so my puddle just disappears. The reason I didn't get a bigger one to start with is I dont have a 220 hook up at my house I'm considering getting a generator then I can run 220 with it.

I'm just running a 110V Lincoln 110 (or 120) from Lowes.