Spamming Saiyans or getting stuck in combos? Spamming saiyans, just learn what super they spam and you'll be able to dodge it. Combos, manage your stamina so that you can use an escape at any time, don't let the enemy control your stamina.

By "letting them control your stamina" do you mean letting them hit you first so waste your bars? Cause that seem to happen to me a lot. Haha and as a namekian my strikes aren't very powerful but it's really hard to hit supers on people. Idk what I can do to make them hit. Ha

They try to take out your stamina by forcing you to block/escape skill, so you have to do the same, go a little offensive and force them to throw you back with an escape skill, once your enemy is low on stamina you take the fight full offensive. Or another way is to be offensive throughout the whole fight, Namekian's have great defense(coupled with a lot of health and you have a tank like a Majin Male) so take a couple hits and dish out as much as you can.