Don't be timide/ashamed of your feelings and wishes/dreams. There won't be another life for them. (You won't have another life for them.)

Don't be afraid of that your feelings and dreams ... There may not be other life for them...

Don't be ashamed your feels and desires. Other life they wouldn't have. :)

Don't shy your feelings and desires .There will not be one more life for them

Don't be timid about your feelings and desires, you only have one lifetime to experience them.