Try to rotate you're schedule every month.
I trained my chest 2 times a week, 1 time bench press, 1 time with dumbells.
3 Things wich you should never forget to do: benchpress, Deadlift (get someone to explain it you, you can fuck up youre back if you dont use the right form), Squatting.
Also dont try to go to much, watch out for overtraining.
I trained for 2 years, 5 days a week, sometimes 2 times a day (fucking addiction) each session i went took 1.5/2 hours, but at the end i fucked myself up..
Went great on weights, more more and more untill my body was so stressed that i got one injury after the other, with this said im still recovering from my shoulder injury been out of the gym for 7 months already, and to be honest i wish i was not that dumb to ignore my body trying to ask for recovery...
Also
Now when i get back to the gym i have to start all over again, i go to the chiropractor for a long time now and finnaly the end is in sight so i can start back again.
Just listen to you're body, if you're to tired better to skip the gym for one day then overtrain.
everybody type is different, my mate got fucked in a few months for me it took a while before i got all the problems..
If you need more help feel free to add me on skype: bdw0223, theres alot to know about going to the gym.
I went through the trial and error, started 3 years ago when i was fat as fuck, 98kg with a height of 1.73, after a year fucking around i went all out(up and down in weight because of the wrong things done) and went to 67kg, had alot of help from the guys at the gym and im proud to say after all this time it was really worth it lol.