The Blues became the first side to hold the Champions League and Europa League titles simultaneously, achieving a unique trophy double, after Ivanovic's stoppage-time header secured a 2-1 victory over Benfica in Amsterdam on Wednesday night.
"The last couple of years with Chelsea is always drama, always interesting," said Ivanovic, who missed last May's win in Munich through suspension.
"When you look back, when we went out of the Champions League - the first time in history the winners went out at the group stage - it was very disappointing.
"At the beginning of this competition we found the motivation and said it's a good chance for us to prove we are a good team.
"All season when you look back and see how hard the season was for us, I think in the end we deserve some trophies. It's great, another European final and another trophy for us.
"To score in the last minute, the winning goal, even in a normal game you are very happy, but in a big final, a European final.
"It's a great feeling, maybe one of the best moments of my career."
Following the semi-final defeat of Basle, Ivanovic looked towards the Europa League final with a determination to savour victory on the field, having been limited to the role of spectator 12 months earlier.
It would have been easier to play than to watch on Wednesday night, with Chelsea under pressure and second best for much of the 90 minutes.
After Fernando Torres' goal was cancelled out by an Oscar Cardozo penalty, awarded for handball against Cesar Azpilicueta, extra-time was looming before Ivanovic met Juan Mata's corner with a looping header which found the far corner of the goal.
"For me Munich was really special, but unfortunately I didn't play," added Ivanovic, who believes Chelsea's big-game experience was key against Benfica.
"Maybe this was my final, as I said before. It's happened like that.
"I have to be happy. This team, with the last couple of years, we deserved every award. You have to fight for everything.
"This team's fighting spirit is one of the most important things. Never give up.
"We have enough experienced players to control the game even when we don't play well.
"You know your team-mates will fight for you. It was a very difficult game, but in the end we won."
The Serbia defender was an unlikely hero, but also a popular one after a training ground move produced the desired result.
Mata, whose influence is often lauded, described Ivanovic as "one of the most important players for us" and praised the work-rate of the defender.
"He deserves today, he deserves tomorrow and for me he deserves always," Mata said.
"He has a personality like a leader in the dressing room. He has experience, he's still young and as a defender he's one of the best.
"I'd rather have him in my team than the other one."