Not one person who is exp can give advice?!

I am still considered new to ESO with only around 200 hours so not sure if any for this will help...

I am currently leveling my MagDK I have not really had any issues with being able to survive, it also depends what weapons and Armour you are using.
But I found that the Light Armour active and Burning Embers helps with being able to survive somewhat, also lightening staff heavy attacks while kiting will help with the maintain, don't forget food for health too.

Play about, go find a nice amount of mobs, whatever you think works best for you, it does take time but you will know your skills and class better by testing and practice than being told exactly what skill to use and when...... No skill in that, might as well be given a macro and sit doing nout by pressing a single button. Derp derp.

In the nicest way possible "You will not become a skilled and experienced player by being given everything on a plate"

Regards,
Demolitionary

Two pieces Valkyn Skoria or Grothdarr, 5 piece Silk of the Sun or Burning Spellweave, 4 piece Moondancer or Infallible Aether.
Until you buy/farm those sets, your best bet is simply craft 5 Julianos and buy 3 Willpower.