Henderson has missed large parts of the season for Liverpool through a succession of injuries.
The 25-year-old has had a persistent heel problem over the course of the campaign and an ankle ligament injury suffered in April meant he missed a large part of the remainder of the club's season. However, he is in contention for England's Euro 2016 squad.
The midfielder told the Liverpool Echo: “The team at Liverpool this season have progressed very well this season. But for me personally, it's been the hardest season of my career so far.
“But you have to go through them at times. You're going to have injuries. Before that, I was quite lucky in that I didn't really have any bad ones, and this season they've all come at once.
“But hopefully I'll be stronger for it. I've come through it, and hopefully I can stay injury free and get back to my best."
Certainly Henderson's form has dipped significantly this season and he has missed key games as they have made runs to both the League Cup and Europa League finals as a result of his injuries; and with just the two goals from a total of 26 appearances in all competitions this campaign his influence on the side has suffered as a result. He will have wanted more game time and a better first season as the club's captain.
It will be interesting to see if he does prove his fitness to Roy Hodgson and is able to make an effective contribution towards England's European Championship campaign.
Liverpool will be glad to see him getting some sustained football under his belt before he reports back to the club for pre-season training as they look to improve in their first full season under Jurgen Klopp from August.