Guidance Please...Overwhelmed!

I just got back in the water a little over a month ago after 15+ years out. I ended my swimming career short (due to hard headness and ignorance) when I was younger so there is a part of me with something to prove. I guess where I am going is I need help on focusing at the task at hand....training for top performance (for me) in competition. I am currently training on my own because the nearest team doesn't offer compatible training times or enough to be honest. I have been perusing the boards and have found lots of great information, but am having a hard time organizing and prioritizing what is relevant to me right now. Any suggestions on how to approach training...dryland/in the pool workouts would be great. I guess with it being so long and doing it on my own I am just a bit overwhelmed!! Thanks, Diana