Can you ever get over ptsd or major depression & anxiety caused by it, struggling so much, hard to try stay positive, without any counselling?

If you can't over: come it in your own counseling is the next best step before medication

Not easy solo: Sorry to hear of your many struggles. Yes, you can get better. I urge you to consider therapy and/or meds, if possible. Many communities offer low to no cost services, if that is a concern. Here are a couple of websites that might help: http://www.ptsd.va.gov/public/treatment/cope/index.asp, and http://www.goodtherapy.org/blog/best-depression-resources-depression-websites-2012-0118137. Take care