Are you essentially asking if you are able to code your own bot to train troops etc.? Because unless you have the experience coding, I doubt you're gonna be able to do it. There are coc bots already and from what I've seen, have what you're asking for. Try google, it can be your best friend bro.

I tried using one but it barley worked

My friend used one and it got he's game centre banned! Clash of clans makers do not mess around wen it comes to that stuff they will ban you! It's not that difficult for you to do by Ur self training troops are easy! And you must know what Ur doing to code something like that can't just go on youtube

I've been using autotouch you can get a script that automatically clicks barrack trains troops then attacks it has 3 options times which is how many times to repeat interval and speed and also use xmodgame to keep active and search for whatever minimum loot you want works a charm, used it non stop since I've used both and made tons of gold and elixer, if you want to see how it works youtube clash of clans autotouch

Just out of curiosity, what fun would you find in the game if you had a bot that literally played the game for you. Train troops, search for a base, and attack automatically. What's the point?