I would not recommend the 11-T.
The principle reason is a very real and practical psychological thing. (A lot of times things that might be called psychology are bullshit, but there are also some things that have enough truth that ignoring them is not the productive thing to do.)
At age 19 and one year of lifting, you DO NOT NEED an extra edge like 11-T to get good results.
If your progress is not quite good in any given time period, such as the period when you were planning to use the 11-T, then the reason was most assuredly not lack of 11-T, but lacks or errors in training and/or nutrition.
11-T could even be counterproductive -- not to immediate results but to the more important, your learning about lifting and training -- by masking errors and causing you to believe they were the right thing to do.
Furthermore, while I don't have experience in this exact issue with 11-T and I am not saying 11-T is an anabolic steroid because it is not, but it seems to me the same psychological principle applies, I have seen it again and again where a young guy who starts employing what should be an edge for more advanced users winds up becoming psychologically dependent on it. He never learns to train and get good results without the edge, and develops the defeatist attitude that without the edge, he is wasting his time anyway and expects nothing, and therefore gets nothing.
As probably a bad analogy, this is like a guy running a 350 Chevy who hasn't done anything the carbs, exhaust or anything else deciding he is going to run 5% nitro in his gasoline. And if he doesn't have his 5% nitro, then he isn't going to even bother running his stoplight Grand Prix or whatever it is he does - he "needs" it -- and he has lost his focus on things that would be more productive to him like some basic engine-building. Instead he's taken 5% nitro as his fix.
(And in case anyone suggests I'm overblowing the effect of 11-T by making a comparison with 5% nitro, actually 5% nitro is not a huge deal, though it's a significant edge.)