I've got over 15 years of snake keeping experience and started out about 21 years ago. Took a few years off. But I consider myself to be "experienced" and I personally haven't added a retic to the family and don't plan to.
Like the others said,a retic isn't an easy species, let alone for a fish time snake keeper. But that being said, you're still SOOOOO close. A retic wouldn't be my first choice, but they are awesome animals.
Keep doing what you're doing. Keep up the research and you'll be good to go.
And your next snake (cause one is never enough, hahahaha) will be a breeze for you. Well, most species anyway.