Khan returned to winning ways last weekend with a 10th-round stoppage triumph over Carlos Molina in Los Angeles, five months after losing his WBA light-welterweight title to WBC champion Garcia in Las Vegas.
In that defeat - his second in a row following a controversial points loss to Lamont Peterson in December 2011 - the 26-year-old Bolton fighter was knocked to the floor three times en route to a fourth-round stoppage.
He subsequently switched trainers from Freddie Roach to Virgil Hunter.
Khan feels he has already improved with Hunter in his corner and is sure if he does get his wish to enter the ring with Garcia again, he will not be susceptible to the same errors he made when they previously clashed.
Reflecting on the fight in July, Khan said: "I was beating him (Garcia) convincingly and then got caught with a shot - I think I was beating him more easily for the first two or three rounds than I was Molina.
"I believe in myself in that fight. I got caught by a shot I shouldn't have been caught by.
"Maybe I was too confident, thinking I was untouchable and that no-one could hurt me.
"But it is all about regrouping myself and I will be back stronger now.
"My new trainer is going to help me a lot - I already see a change in my style.
"We are not going to make these mistakes again and we are not going to be giving opponents a chance now."
Having beaten Molina, Khan is targeting April for his next bout and wants another showdown with Philadelphian Garcia to follow later in 2013.
Garcia has indicated his willingness to fight the Briton again if a satisfactory deal can be struck, but a reluctance for it to happen in England.
"The next fight is going to be around April time," Khan said.
"That will give me a nice little break. Then I want to be back in the ring again and then trying for the rematch with Danny Garcia.
"Next year should be a very good year for me.
"In April I'm looking at it being a fight in the 140lbs division for a world title, and then at unifying it with the Garcia fight - if he gets through his fight with Zab Judah (in February).
"Boxing is a sport where one punch can change a fight, but hopefully he wins that fight, I get through mine in April and then maybe at the end of the year it will be a good fight with him."