I left school for a year. I realize the job market wants me to have SW skill.

I cannot afford a few thousand dollars for SW

I want to get certication to get job and need SW during the training period.

Will I able to download a trail version after I buy a certification exam?

OR other any source that I can use SW for 30 or 90 days legally.  For example, maybe some SW books in the market come with a SW 30 days license. Something like that

Thanks