The eGo kit is likely the most recommended kit for beginning vapers and those looking to upgrade from cig-a-likes. Even vaping pros like them and swear by them. You're sure to like it much better than the Blus.
I have read multiple leakage posts about virtually every tank on the market from Kangers to ViVi Novas to RBAs. What you don't often read about are the thousands of satisfied users of those very same tanks. Who really posts a thread to say, "Hey, I bought a Kanger and guess what...it doesn't leak."?
There are those that leak worse than others, particularly with the knock-offs. But I wouldn't say you screwed up. Perhaps you'll be happy with what you get. Most of us want to get several parts through our vaping "careers" to find what works perfectly for us.
I personally have had nothing but a good experience with Kanger and ViVi, though one of my Kangers tends to flood just a little. The other is fine and I still swear by them. If your eGo tank leaks, look for something else.
Kanger CE5 and ViVi Novas are top-rated clearomizer style tanks perfect for those who label themselves technically challenged. Simply fill them and go. You just have to make sure you keep the wicks good and wet, which means tipping and rolling your device a bit, but no big deal. And they're not very expensive at all.
You may wish to go ahead and order one. Any vaper will attest that you need backups for your backups. Then, if you really don't like the eGo tank, you'll already have a backup and won't be left without a vaporizer while waiting for parts in the mail.
P.S. - One big concern with those tanks I mentioned is that some flavors will etch, warp, or crack plastic tanks - particularly cinnamon. Look for words of warning about that when you order your juice, or if those are the type of flavors you like, look for a true glass tank. But I think clearomizer style (the ones with cotton wicks) would be the best for you to start.
Oh! One more thing: Congrats for making the switch and best wishes and all.