I am in need of help in finding the name of a song. I only have a few of the lyrics.

I'm going crazy, I'm losing sleep, over you You were the first, you'll be the last Whatever you want, I'll give it to you

These are some diff lyrics from the song. When it first starts, it reminds me of cheap Trick, but it isn't them. It also has a good guitar riff in it. Any idea what it is? Please email me at [email protected] THANK YOU!