I wish I had more answers for you. I am new to this. I bought my brother a Trezor for Christmas. He has me using an app on my phone Coinomi. When I first started my app wallet I took a screen shot of it every few days I take a new screen shot to keep up with it. However I wish I could be more helpful. I am in the learning stages.
RE: WALLETS!! MULTIPLE EXCHANGES!! FEAR!!