Is money everything or not?

My mom is a single parent. So in my whole life money has been important. We have had our hardest period in our life because we did not have money. So my whole life I have prioritized money. I studied and became an engineer and I choose to work on the best company to get the best salary. Before I got this job I always get moody or angry because I did not have money. After getting this job, I got moody and stuff because I thought I will not get salary this month because I am started at new job. I see that I prioritize money a lot and I hate it now. My family always says that I get moody even tho I try to fix my problem. How can I fix myself?
Is money everything or not?
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