I'll be glad if someone checks the paragraph below:
James (two and a half years old) inspires joy in his surrounding and externalizes feelings which indicate that he loves himself and lives in peace with those who surround him. He enjoys playing alone and when managing to turn his imagination into reality and build a garage for cars he shows his happiness, enthusiasm and positive self- esteem. He invites his mother or father to be impressed with his new creation. Of course, they are excited together with him, sharing their feelings with him and showering him with their love whilst he, for his part, demonstrates his love for them. Sometimes he is so excited that he can't express himself in words with his parents helping him to control his feelings and communicate. Randomly, mainly due to frustration and disappointment, James' negative feelings erupt prompting him to ruin everything. However, he soon makes the balance of his conflicting feelings and comes to his senses to regain his parents' love
"...they are excited together with him - might sound better if written, "They are excited along with him."
"Sometimes he is so excited that he can't express himself in words with his parents helping him to control his feelings and communicate. " - might be clearer if written, "Sometimes he is so excited that he can't express himself in words and then his parents help him to control his feelings and communicate."
Gillnetter: Thank you very much!