The best advice I can offer is this:
FEAR NEVER ARRIVES!
By that, I mean, fear is always in the future. Always. It is based on "what if" thinking, which is worrying about some future event happening, when that's all it is, a future event...an illusion. The future doesn't exist. The past is gone. All that exists is the present moment. Don't dwell on "what if", because that is not productive. We can't predict the future, we can only learn from our past actions, and live our lives in this moment. If you do that, you will have no regrets about the past, and no fear of the future, because you will be living your life in the here and now.
Everything in life has its balance...its opposite. For every good, there is a bad. For every positive, a negative. What matters is what we choose to put our energy and time into thinking about. If we focus on the negatives, that's what we get, because that's all we see.
For example, my aunt, who is in her 70s and still quite active, working and independent, recently fell and shattered bones in her leg/hip. She had to have metal inserted to repair the damage, and was laid up for quite a while. However, she is now walking again, able to get herself to the toilet, dress herself...all the things she couldn't do immediately following the surgery. On top of that, she contracted MRSA, which is that serious staph infection you get at hospitals, so she's currently on IV antibiotics and so forth, and may have to have all the metal taken out again to treat the infection.
My point is, the positives of this event are still there. The same event, two opposing viewpoints. On the one hand, she could be wallowing in self-pity, telling herself that she's not as independent, right now, as she once was. On the other hand, she has a good doctor, who is taking care of her, a loving husband, supportive and caring family who are there for her, and many other things to be happy about.
I'm sure you have a similar situation. So, you can choose to focus on the negatives, and not live in the moment, or you can choose to focus on, and strive for, the positives, and as long as you keep your eyes on that goal, the positive outcome, that is the one you will eventually reach, because that is the goal you have your sights set on.
*hugs and much love*