Drinkwater is currently on his fourth loan spell away from Stamford Bridge since joining Chelsea from Leicester City in the summer of 2017 for £35m.
The 31-year-old recently joined Championship side Reading on a season-loan deal after underwhelming temporary spells at Aston Villa, Burnley and Turkish side Kasimpasa.
Drinkwater has made just 23 appearances for Chelsea since his big-money move from the King Power Stadium, where he won the Premier League in the 2015/2016 season.
“Can I paint a picture? No. It’s been a shambles,” Drinkwater told talkSPORT.
“It’s football, it’s never straightforward, it’s never simple. I’m just excited for the new challenges.
“I need to [kick-start my career]. I’m more excited about this than I have been for a few years now, especially how my career’s panned out.
“Games, getting the enjoyment of football back, then going from there. A few have slid away, I’ve made mistakes, I’ve not played.
“I’m in the last year of my contract, so there’s more than just football riding on it. I’ve got other things.”
He added: “I’m desperate for games, I know my position and I know it’s not what I’ve expected for ten years.
“So I’ve got to make changes and I’m making the right steps.
” I’ve just got to keep in contact with the manager, trust each other and trust the team. Hopefully they trust me and we can build on that.”