I feel very low self esteem and can't face daily...

Self-Confidence is the way in which a person looks at him/herself,  whether it is high or low. Self-esteem is very important in that it is the gateway to all kinds of success, so no matter how a person uses methods of success and self-development, if his self-esteem and his look of it are wrong and weak, he / she will not succeed in succeeding any of these methods for success, because he / she sees him/herself incapable and not deserving of this success

Poor self-esteem may be due to
Incorrect childhood development that relied on over protection or cruelty
Fear of being criticized or mocked for doing his usual actions, so he resorts to isolation and keeps fearing criticism of all kinds.
The feeling inside that he is incompetent or unable to succeed
Experiencing situations in which a person has failed and repeated passage of negative experiences, such as failing a test, or failing to do a job, which makes a person highly suspicious of his / her abilities
The person repeats some words that have a negative effect on him, such as: I am a failure, or an unsuccessful. This makes the subconscious mind programmed on that.
Focusing on weaknesses of his personality
Make comparisons between himself and others

Here are some tips to enhance your self-esteem
Developing positive self-talk, stopping negative self-criticism, and developing an objective view of things
Keep away from isolation and blending with others by having different occasions, it makes the person open to others, and helps him to increase and enhance his / her self-confidence
Exercising daily training and sports for at least half an hour, it helps to discharge negative thoughts off mind, improves his psychological state, and thus helps to strengthening a person’s self-confidence
Plan your day activities and use your time well, because time management is necessary for success in life

Make your day busy and make it full of activities. Leave no room for spare time that leads you to think about the problems
Find yourself and identify your strengths and positive sides in your life, as well as identify your weaknesses and create a plan to develop them
Discard your negative energy by speaking with a close person or by writing
Keep away from people that belittle or underestimate you and criticize in every big or small things.