Anderson has been left out of the Test squad for the ongoing West Indies tour.
Anderson and Stuart Broad, England’s two all-time leading Test wicket-takers, were dropped from the West Indies Test series as the English side underwent a major overhaul after their humiliating 4-0 Ashes loss in Australia.
“When you’re hearing how things are going and not being a part of this rebuild is a little bit tough. But I made peace with the decision weeks ago; it’s completely out of my control," said Anderson on BBC Radio 5 Live.
“What I can do now is just get myself ready for the county season and try and show people what I can do. I feel in a good place physically and mentally as well," he added.
The 39-year-old said he will now play for his county side Lancashire to reclaim his spot in the England Test side.
“I’m (now) just looking forward to playing some cricket for Lancashire," he remarked.
Commenting on young pacer Saqib Mahmood’s perfect debut in the drawn second Test at Barbados, Anderson said, “It will do wonders for him, that’s an amazing return on that pitch where we saw all other seam bowlers struggle."
The 25-year-old Mahmood returned with match figures of 4/79 on his Test debut.
“To perform like that in your first game, especially in that second innings, it did give England a little bit of a sniff. His chest will be out after that game. It would have been hard work for him on that pitch this week and Test cricket will only get easier as his career develops," opined Anderson.
“He’s not a Jofra (Archer), he’s not a Mark Wood; he’s not a 95mph bowler. I feel like he’s going to consistently hit 85mph and be pretty accurate," added Anderson.