Hi! I'm relatively new to vaping and, like you, I had a hard time with it at first. What kind of e-cig are you using? I tried a couple of different ones and finding the right one for me really helped. I use the Aspire Atlantis (at first, the original one and recently upgraded to the Atlantis 2) and I find that it has made all the difference because I'm getting harder hits of juice than with previous ones. Also, what mg juices are you using? If you're using a lower one, such as 3mg or 6mg, it might not be strong enough for you. I was a pretty heavy smoker (Parliament Light 100's) and the 12mg juice satisfies me.
Instead of stressing yourself out trying to create your own juices at first, you might be better off finding a really good shop that has a variety of flavors. The shops I go to have staff that are really knowledgable and can give recommendations based on the flavor I am looking for; it's nice, too, because they allow me to sample them before buying. Once you have a sense of the flavors/brands you like, you'll have an easier time trying to create your own.
Also, once you find an e-cig and juice that you like, you'll find yourself preferring it to the real thing. There's been times where I've smoked a real one and I actually find myself grossed out by the taste and smell. Stick with it, you can do it!