It is hard to be positive.
But after he loses these 90 points, I don't think that he has any points to defend for the rest of the year.
He didn't win anything for months last year. So if he keeps playing in challengers, he's bound to move up.
The problem will come if he decides to qualify for regular tournaments too quickly. He'll lose and go down more for sure then. He's got to get his confidence back on challengers first, and then go back.