Yes! Fear of the unknown is a big one for me. Fear is a natural human emotion, and its not something one can totally eradicate from their life forever. Our emotions are gauges, they help us plan and make decisions for our future - in that respect, fear can be a useful tool. It becomes a problem when one begins to cling to fear and latch onto it in despair and use it as a tool to not move forward. Something I'm guilty of doing as well.
I have many fears, fear of college, fear of embarrassment, fear of failure, fear of the unknown, fear of public speaking, fear of ruining relationships, fear of growing old alone, all of these are actually universal fears, almost every single person has them.

Here is a quote I just read a few minutes ago -
If you are depressed, you are living in the Past. If you are anxious, living in the future. If you are at peace you are living in the moment.


by the way having a decent living and a good job is a wonderful thing and you should feel very proud of yourself for that.
I don't know if this is true for most people in their 40s but I do recall my parents not having many friends from their 40s to their 60s and I actually think this might be a common thing for many people at a certain age. You have coworkers, you have acquaintances, you have family members, and you have a couple of friends or not, that seems to be what happens as time goes by to most people...I guess its an individual thing though, but it doesn't mean you're unapproachable or anything, it just means that life becomes very busy for a lot of people and friends are not a main priority among daily life and responsibilities.

Just take every day at a time and try to stay present. That's all anyone can do. Positive thinking goes a long way, negative thinking keeps us stuck in pain.