Well, I like stouts, but I wouldn't drop some black patent in my cream ale, and if I did I would expect a very different beer. An amber is a pretty distinct style from a cream ale, and I would not expect lactose to be exactly the same in one as the other.
You've already got a pretty dramatic departure in your jalepenos or fruit. That's a good tweak on a cream ale. Lactose nay be a good tweak. Jalepeno and lactose? Maybe good, maybe not.
Point is, deviating from a style is cool, and no reason not to do it. But the further you vary, the more likely something goes bad.
I am glad you are excited and experimenting, but don't get too crazy. You might find yourself making a strawberry jalepeno black milk coffee chocolate pumpkin India cream ale.
This is your first batch, not your last. There will be other beers and other experiments. You don't necessarily need to try everything at once.
But, true to theme, your beer and your brewery, so throw in the kitchen sink. I wouldn't, but I'm not you. Hey, you can pee in the kettle and it won't bother me any.
If you do decide to do both, I would suggest the lactose would go better with the fruit. Make a strawberry shortcake cream ale.