Please help

Jimmy and Frank are bestfriends. They first met in second grade, and they have
growed up together. These two have had alot of adventures over the years. They once got lost on a fishing trip and ended up wandering in the woods for two days, they were
rescued by a park ranger. That was definately a trip they would never forget. Another
time, Jimmy climbed a tree to get the nieghbor's cat, and he got stuck. With no way to
get down. He new he was in trouble when the wether suddenly grew wicked, and he found himself caught in a lightening storm. Frank herd Jimmy yelling for help, and he
was able to get a ladder and rescue him. Jimmy is glad that him and Frank are friends.
Their never seems to be a dull moment when there together. There adventures keep
things interesting.

What are the mistakes in this paragraph? Spelling errors, grammar, and/or would choice

Jimmy and Frank are best friends. They first met in second grade, and they have grown up together. These two have had a lot of adventures over the years. They once got lost on a fishing trip and ended up wandering in the woods for two days, they were rescued by a park ranger. That was definitely a trip they would never forget. Another time, Jimmy climbed a tree to get the neighbor's cat, and he got stuck. With no way to get down. He knew he was in trouble when the weather suddenly grew wicked, and he found himself caught in a lightning storm. Frank herd Jimmy yelling for help, and he was able to get a ladder and rescue him. Jimmy is glad that him and Frank are friends. There never seems to be a dull moment when there together. There adventures keep things interesting.

Explanation: