1, four years is not short.
For people in the workplace, the golden workplace is only about 30 years. So four years is definitely not a short time for everyone's career development. Therefore, if you want to make up for it, you need to work hard for four more years in the workplace.
2. Rapid social development and iterative updating of knowledge and skills.
For a stay-at-home mother who has left the workplace for four years, it is very likely that the original professional skills have failed to keep up with the actual needs. Of course, not all industries and occupations are like this, but in most cases it should be. If, in these four years, you are really a full-time mother, the strangeness of professional skills is inevitable. Therefore, stay-at-home mothers should be psychologically prepared. Many young people may be better at work than you for the time being. Your competitors are not of the same generation. They are younger and more energetic.
3. Are the network resources in the workplace still there?
Interpersonal communication, without the usual work, it is very likely that the useful workplace network resources accumulated by yourself will disappear. Therefore, it is very likely that when you return to the workplace, your original workplace environment needs to be restarted. This is also a big challenge for you.
If you want to return to the workplace, the most important thing is to adjust your mentality.
Don't say anything about empty cups and modesty. At least let yourself regain the mentality of a newcomer in the workplace. The most important thing is not to let go of the past, otherwise it is likely to bring a heavy burden to yourself.