Long jumper Chris Tomlinson says the loss of British Athletics lottery funding will not alter his intention to continue his career.
The three-time Olympian, 33, came sixth at London 2012 and fifth at Glasgow's Commonwealth Games earlier this year.
However he was one of several high-profile names omitted from the programme revealed last week.
"The only thing it has done is make me far more enthusiastic, it's a breath of fresh air," Tomlinson told BBC Tees.
"When you're funded by UK Athletics as such, they're always telling you that you have to do this or that.
"I got a call from someone at UK athletics asking what I was going to do now (funding has been withdrawn) and I quite politely told them it's none of their business.
"I can do what I like now, I'm being coached by my dad and going out training hard in Middlesbrough.
"I have to go out and do a bit more than I ideally would have liked because of that regular input you get from the lottery."
British Athletics say potential for success is now the main factor when deciding which athletes to fund, with performance director Neil Black stating: "It's about medals."
|2008: World Indoor Championships, Valencia: Silver||2010 European Championships, Barcelona: Bronze|
Tomlinson, who parted company with coach Rana Reider earlier this year, will take on coaching and personal training work to fund his own preparations.
"The reality is, I could have been funded by British Athletics through my sixth-placed finish at London for the next four years," the former British record-holder said.
"However they've looked at it and say: 'We don't think Chris is going to get a medal in Rio - he's probably going to be too old'.
"That's their opinion, they've stood with that and kicked me off the programme."