The Ivorian suffered a few minor injuries that lost him his regular place at the club. He was also heavily criticized lately after throwing a coin at Burnley fans in a carling Cup tie.
"It has been really tough in the last six months," Drogba told Sky Sports News.
"Too many bad things have been said on me in the last few weeks, I don't really want to speak about it; I feel like what I've done-the coin throwing- is really bad."
Sending-off
The 31-year-old added that it all started when he was sent off in the UEFA Champions League final defeat against Manchester United in May.
"It's easy to say Drogba is guilty for the loss in Moscow instead to say Chelsea were unlucky. I had to take the blame."
After the game ended in a 1-1, John Terry and Nicolas Anelka wasted two spot-kicks for the Blues to hand United the Champions League trophy.
"I was really disappointed as there was only a few minutes to go, once again I don't know how I put myself in this situation during a game you can do something you don't realize."
"People say I would have taken the fifth penalty and we would have won the game, but I may have missed it anyway - you learn a lot from this sort of situation and that is what life is about."
Future ahead
Despite admitting that things are going bad at the moment, Drogba insisted that he's capable of getting everything back in order.
"It's difficult - from this coin situation, from the red card. But I can't lose and I won't lose my happiness; it's not possible.
"I've been through difficult moments before, so I know how to get myself out of this."
"So it is better for me to keep quiet on that and to be back on the pitch and do what I know best."