First of all, Welcome to Wisconsin. You are on your way to learning a whole new way of fishing. I wish I could help you out but I live in the central part of the state. But here's a few tips to get you started. First you need to decide what species you want to target. You have a lot of choices living in the Milwaukee area. Probably the most popular for the area would be fishing the big lake for trout and salmon, either from a boat or shore. There are numerous piers to fish from in the area and they are productive. There are lakes that are not far from Milwaukee that are great bass lakes, northers and muskies.
If interested in fishing the big lake, just go down to some of the piers and check it out. Ask questions. Most fishermen are more than willing to help out. Just remember that if you pursue trout and such on the lake, you need to purchase a Great Lakes Stamp besides your regular fishing liscence.
Check out the Wisconsin DNR website. There actually is a great deal of info for fishermen, from shore fishing locations to lake maps online. Take some time to check out the site.
I hope this gets you a placeto start atl least. Good luck.

Welcome to both Wisconsin and the NAFC.

From one Vet to another...thank you for your service!

I hope you are able to make some connections on here.

I'm too far away to be able to get together with you

I live in Madison, which is west of you. Not far from your llocation is Pewaukee Lake. it is a very good Musky lake. I do not have any experience on that water. If you travel a little farther west you get into the Oconomowoc area. The lakes in this area are many and good fishing water for whatever specie you want to chase. Tight lines.