Hello everyone! I am new here and new to cycling.. well, it has been almost 20 years since I have been on a bike but I want to start commuting via bike to work and back (not always back might bus back). It will be a 15 mile one-way trip four days a week.. potentially 120 miles a week. I'm exhausted just thinking about it but I am up for the challenge.

I have yet to make a selection on a bike but I am considering a hybrid/comfort/commuter. I am not willing to spend more than 500 on my first bike in case this is something I give up on shortly after starting (obviously I lack self confidence and a willingness to commit), BUT also the area in which I work I would be afraid of theft. Maybe down the road I would spend more on a bike but right now.. does anyone have any suggestions for something comfortable and durable enough for such a commute within the 300-500 dollar range? The commute would be 90% paved bike trail.. I would like to be able to haul a bit of cargo with me and fenders would be a plus. I understand I can probably add these on myself if the bike does not come with and that is fine. So far I have considered a Schwinn Discover (or comparable) hybrid on the more inexpensive side of the spectrum up to a Lombardo Siena 100M on the more expensive side. Any help for what is in between would be greatly appreciated!

Thank you for all your help and suggestions!