Everyone has their time

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Everything in life happens according to our time, our clock, you may look at some of your friends and think that they are ahead of you, maybe some of them you feel are behind, but everything happens at their own pace, they have their own time and clock and so do you.

Be patient

Getting your degree after 25 is still an achievement.
Not being married at 30 but still happy is beautiful.
Starting a family after 35 is still possible and buying a house after 40 is still great.

Don't let anyone rush you with their timelines.

Just as Einstein said;

Not everything that counts can be counted and not everything that's counted truly counts.

The most important thing is that you are able to create meaningful, purposeful, fulfilling lives for yourself and learn how to use that to make an impact and difference in the lives of others, only when you do this would you have attained true success.