My body have ache ><"

In the morning, I have a Yoga lesson with my aunt and  sister . That is a health actions. It can make body to be thin and relax.  I learn Yoga have two months already.But my body still can not lithe . I have a ache every times when  I finished the lessone.

Moreover, the weather always is rainning. that is so bad.  I want to see sunshine. which time when I can go to the beach ??