The Big Bang Theory star endured a difficult 2012 - she separated from her husband of nine years, Michael Stone, and sustained severe injuries in a car crash in August (12).
Bialik, who is still recovering from the accident, has started to focus her energy on getting physically fit, and she hopes to test her endurance with a climb in the coming months.
She tells People.com, "I'm planning on climbing a large mountain with a close friend of mine who is a professional climber. It's something I've wanted to do. I took up jogging right around the time (we) announced our divorce. I've been really putting myself out there physically. When you've had a 2012 like me, things can only get better. That's the glass half-full."
The former Blossom star also credited Judaism with pulling her through, adding, "I'm a person of deep religious faith. I really believe that things will be right in the universe. Things are hard, but I've really been taught in my tradition that the harder things are, the greater the potential reward. I really believe that.
"I don't want to say everything happens for a reason, but every day is lined up right next to the other one for a reason. The best you can do is do each day well with kindness and as a good person."
Bialik has two sons, Miles and Fred, with Stone.