I am also relatively new to the boards and you can post here and get some really good advice, as you can see from Carol's reply.
You will not forget everything, that does not happen. What you can do is let go of things. I think each of us has our own journey to take and what works for one may not work for another, but on boards such as this we can each tell about our individual journeys and hope that they may be of help to others trying to find their own paths.
When i was trying to deal with events that happened to me, I found the most successful way of dealing with things was to change my perspective on things. I was terribly lonely after leaving the UK and moving to the US without knowing anyone out here (I separated from and subsequently divorced my husband) and had been suffering from clincal depression for a few years, culminating in a suicide attempt. The loneliness gave me time to dwell on issues of the past and hampered my acceptance of the present. I realised I had to stop this.
My path was about acceptance of who I am now, and learning to like that person. Whether we like or dislike who we are, the only person with the ability to change our own circumstances is ourselves. We are the only ones who have to live with who we are, so if we don't like it then the only thing we can do is change. What happened in the past has shaped our present, there is no changing it. In that we are powerless. All we can do is stop the past from dictating our present and future to us.
I had to change my perspective. I had to start looking at what I could do to make my life more enjoyable. The things I could not control I stopped thinking about, when I found myself dwelling I would distract myself with something pleasurable. It is very easy to think about negative things, much harder to change that negative loop, but with hard work it can happen. One day I found that I no longer woke up in the morning shaking with fear at the day ahead. I changed my perception of loneliness. I was on my own, sure, but that also gave me the freedom to do whatever I wanted, if I wanted to go to the cinema at 12am I could, and did. If I wanted to eat at a nice restaurant I did. The first time I did that was scary. But I saw it through and was able to enjoy it. I was able to acknowledge the choice I had in all areas of my life, that I was able to make the choice.
You made the choice to stay and work. Great! But don't isolate yourself. Get out and do things. Make sure you chose safe activities, join a social group or just try to enjoy being on your own. Tiny steps and you have to keep the momentum going. It can be done 
If you need to talk about issues then here is a very good place to start. It can be a little slow but it helps to ease the burden. Take care of and be good to yourself. I still get lonely and feel down (especially at that time of the month, but when I do I go and buy myself a rose or something. Who says you need other people to buy you flowers, right? 
Accept. Forgive yourself. Let go of the past. Learn to enjoy the present. It is a cliche but today is the first day of the rest of your life. This applies every new day that you have. Look to the positive (an active process, it is not always easy) and things will start to get better.
Take care.
Louise