I changed job recently because the previous job is tooooo much work and toooo little help from the team members, and I felt very tired everyday. I changed the job lately, it turns out the new job is equally , if not more work and tiring. I don't think I am too old for software work. I think the company which hires now are those which BADLY need people, and once you are on board, you will be given a lot of work. So think twice before you change. My two cents.
I feel it's a bad time to change job. Hope this helps fellows in here.