How do I stop thinking about my family's expectation and pressure for me to do good later on in life?

By understanding that it's your life and not theirs life. You are making your own path. Whatever happens you will be able to fight it trough.

Your family will always thing the highest of you. Thats because they are family. As for you as a person you will make choices and calls on your own as a person and sometimes or most of the times it will not go according to plan. But don't stress about it just learn and grow from it. After all we are only human.

although our family shapes how we live our lives we should try to focus on our own personal goals and expectations in life. The pressure may never go away but finding ways to cope with it is very useful.

Experiment and try to find your path in life as any curious human being would. Pier pressure is normal and is based on common anxieties that one should do good and not drift away. Acknowledge the pressure from your family and treat it as a challenge, knowing that you would do the same if you had offspring. In the end it's about what you do to keep you afloat financially and and what other things bring you joy and fulfillment. Overthinking about this aspect and not acting upon it tends to paralyze and make one think he is not worthy of being responsible for himself or competent to make decisions, in the end, it's about breaking the illusion that this anxiety gives.

Unfortunately, you cannot. Family expectations are one aspect of life that does not go away. If you feel that your family's expectations are overwhelming and impossible to meet, you may want to try journaling. Writing out what you are feeling and why you feel that way can be very beneficial; if you would like, you can also have a sit down with your family and discuss how them pressuring you makes you feel. This can feel scary at first, but going along with their wishes for the sake of peace only makes you more miserable. You may not change their minds, they may get angry but at the very least you expressed how you were feeling and as much as they may try to punish you; expressing your emotions is not a crime.