regardless of the OP's age, it's a good question for others. A lot of guys report "feeling" depressed when they come off cycle. This is due to many factors.
To begin, let's be clear that depression is not a "thing." It's a term used to describe a certain state, condition or pattern of behaviors. So no, a person does not become depressed per se but a lot of things change when a person comes off. Most guys are very dissatisfied with how much weight they keep when they come off. When we are on, we are obviously bigger and stronger. With that comes a sense of confidence (most of the time unjustified). We like the attention we get and the feeling of accomplishment in the gym. When we lose some of this when we get off, we tend to be unhappy due to a perceived loss of attention and satisfaction. To combat this, I always say to keep cycles the appropriate length (12 weeks or so) so there is not such a huge contrast when you come off. Also, obviously, running proper post cycle therapy (pct) and keeping cals up and lifting heavy help reduce the amount lost. Most importantly, don't get arrogant when on cycle. If you keep your head on straight and don't let it inflate then there really is no drop when you come off.
Loss of sex drive and temporary issues with erections also bother a lot of guys. This does happen to some guys but it is only temporary. If this happens, just know it will pass soon and don't let it get in your head. Once you start worrying about this stuff it only makes it worse. Running cycles of appropriate lengths also helps this one.
Last thing is a loss of energy. I personally think this one is all in your head. As long as you keep your schedule the same, you shouldn't see a loss in energy. The thing is that since we do lose some strength, lifting becomes less fun. Because we don't get as much attention, being social might not be as much fun. So again, and bottom line, don't let your life or perspective change too much when you are on cycle. Keep yourself safe and keep your life the same.