I'm on a budget and seeking for 1 (perhaps 2 if absolutely 'necessary') more supplement. Naturally, I thought that a protein supplement would be the right thing to purchase, but I can also get protein shakes at my gym (albeit probably of inferior quality), so I don't know if I should go with a random inferior protein shake and instead buy another supplement or just buy a good protein supplement.
Some info: I'm 19yo and a skinny, tall guy. Sometimes I face problems consuming enough food a day (trying to add some serious mass right now), I usually suffer from extreme muscle soreness after training and I get tired relatively fast during my workouts (though this is more of an I-consume-carbs-with-a-suboptimal- glycemic-index-prior-to-training-or-just-too-little-carbs-in-general related problem, so this has a very low priority).
I have read the stacks article, but the explanation is limited and the amount of products is usually above my budget (aside from Flameout and Superfood I have money for 1, maybe 2 more supplements) and I'm not sure if the article is slightly outdated. Therefor, I am asking for your help.
Thanks in advance.