Personal development improves self identity, creates a full potential to find a reason to step forward in life, helps to know your strengths and weaknesses. Little things can help self improvement. such as;
Doing what you love doing best like your hobbies.
Learning new skills
Meditation
Reading a book
Going out on vacations with family and friends
Taking up a new vocational training
picking up a new hobby
Having a passion to grow. this will uplift your spirit Into becoming a better person and reminding yourself who you are.