Erm, wow...
OK, first of all, your dog is not telling you because
you have not trained her to do so. Imagine me coming up to your dog and asking for a "roll over", I imagine she's just stare at me as you have not trained that command (assuming and for example purposes only, obviously). Also, using a crate as punishment is cruel and gives crate-training a bad name. I know what you said after your first post and that you tried to save face, but never ever use a crate as punishment. Two of my dogs have crates, they are fed in them and go in them as they want. Every time they are put in there by myself or my husband, they are given a treat and it is treated like one of the best things in the world. We say the word "crate" and they go flying to their crates, waiting for their treats.
Secondly, having a schedule is so important, not only for you so you know what is normal for your dog and when something may be amiss, but also for your dog and her routine. I could tell you at what times of day my dogs pee, poop, and eat. Like clockwork. This is important for me to know as this is one of the first questions asked at most vet appointments, "is bella eating normally? normal eliminations?" and I CAN answer because they are on a schedule. So, YES, knowing how often and by what means your dog is mentally stimulated is very important to answering your questions.
Thirdly, you have a puppy. Of course she wants to play. I wouldn't want to be stuck inside all day. Heck, sometimes my dogs just want to go out and lay in the sun and sometimes that is a grand idea for ultimate relaxation for all of us. I wonder how mentally stimulated your pup can be, being kept indoors and only allowed outside for potty times. I'd make you believe I had to go potty as well! If it is currently unsafe for her to be out, MAKE it safe for her to be outside, otherwise it's a bunch of excuses as to why things can't be done for your pup.
Lastly, one can not go from A to Z without going through all the letters in between. I am happy you have such a good puppy, but it is unwise as well as unfair to have her assume such "grown up dog" behaviors so quick in life. She needs to experience things. She needs to be let outside. She needs mental stimulation. She needs a schedule. I'd also suggest training her to pee and poop on command, that way you have more control over the situation. My dogs know that if we give those commands, they'd better go or it's going to be awhile before they can go again.
OK, one more thing. YOU came here asking for help. Many of the people who have posted in this thread are professionals who have taken the time out of their busy schedules to be here and offer assistance and others are experienced dog owners who, it seems like you, have been around the block a time or two and like to share experiences. It would behoove you to graciously accept the generosity of their advice and to try what everyone is suggesting. After all, if you knew it all, you would not be here asking for our advice.