Joomla website with a bounce rate of 72%

I have been playing around with internet marketing of and on for the past few years with various websites and I am slowly closing in on the finer details of what makes a good website opposed to a not so good website. Having said that I am not sure what to do about the following.

I have a Joomla Website with a bounce rate of 72%. I am told that the BR should be below 50% at least?? Sales are slow with a daily visitor count of about 25.

I am not sure what to do to correct this problem. I could play with it myself as a trial and error situation to see if it improves or I could give it to someone to correct for me.

Reading through the forum I see 2 sides to this problem.

1) If I do it my self I will have the experience and learning.
2) If I pay the right person I will save time.

The site may need a few tweaks or a re-build?? I just don't know?? Who would you recommend to look at it for me and for a reasonable price? Is there a way I can find out via some software as to what the problem could be?

I also I hear that the Wordpress site it much more user friendly so would it be worth jumping ship with this website?

Moving forward I want to do things correctly with as little re work as possible. With all the experience you guys have in being a successful internet marketer what would be my best option in gaining knowledge and shortening the learning curve to be successful.

Any advice would be truly appreciated.