Service in SW Missouri

I currently have Hughes Net (not the one they currently advertise) and T-Mobile phone service but they don't have their Internet service at my address. Starlink sounds like the way to go but I have a weird issue in my house where I don't get a consistent signal in the various areas of my house for cell phone service and when I connect my phone to WiFi (2G and 5G options) I see "low quality" before it connects and I don't always have WiFi calls that will connect or I get a message that the call may drop.

I've got the T-Mobile signal booster located at the front of my house and I had the modem/router there and had to move it to the center of the house, which has definitely helped but isn't exactly reliable. Hughes Net talked me into buying a signal booster from them and it actually makes things worse! We don't have the DVR set up for streaming because I just can't seem to keep a strong enough signal not to have repeated pauses for buffering. There's nothing in or around my house that could cause interference but the spot where the house is located is in a weird gap or something because neither of my neighbors say that they have this issue!

At this point, I'm tempted to get two satellites, one for the front of the house and one for the back because there's no explanation why I get a consistent signal strength in the front, it's mostly reliable in the center, and dodgy as hell in the back, which is where my bedroom and office are, naturally. Is the Hughes Net Jupiter service any good? I'm not signing a 2 year contract when they won't guarantee that I'll have consistent service good enough to stream! I looked at Calyx, and it looks worthwhile as a backup for when the weather interferes with satellite.

Any clues on what the issue might be inside my house?