Navagraha Yagya and Maha Mritunjaya Yagya

[Marlin]

I've seen a number of articles on this thread about stotra and mantra, but I wanted to ask what performance of Navagraha Yagya achieves. I always hear that it strengthens all the planets, but what material outcomes are likely?
Iam currently without a job, little money and life is very dull. I am in Moon/Saturn dasa (8th/2nd). My ruling planet is Jupiter and is exceptionally weak in my chart.
Someone had mentioned Maha Mrityunjaya yagya to me also, but it seems to be to do with accidents and I don't have problem with accidents. What are the other reasons to have Maha Mritunjaya yagya performed?