Afraid to jump?

I play volleyball and less we had conditioning and we have to jump over hurdles I was too afraid to do it. Then last day to practice the coach wanted me to block but I couldn't because of the job I was afraid to jump. A few months ago in dance, I strained my Achilles' tendon and I had to wear a boot for two months. I got the boot off in April and my doctor told me to take it easy for awhile. Now it's almost July and I'm so scared to jump on my foot. Help!!!
Afraid to jump?
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