There's a large number of websites that go through the mirror making process from inital preparation to final figuring of the surface.
The process is not hard to do but does take some patience to do successfully as it can be an art.
You may also want to find the Telescope Nut in your club who can help you with your problem.
You can do the job yourself if you really try to do so and you will probably do a job as good as any obtainable from the commmercial industry of making optics if you keep at it.
If you are a little creative, you can probably do the entire polishing and figuring for under $50 with making all of the test equipment that is needed to do the job and the materials needed to polish and figure the mirror.
The biggest failure on making mirrors is the lack of desire to finally finish it and not for any other reason.