If we're not finding your current location correctly the best first step is to check that Location Services are enabled on your device and that MapQuest has permission to use them.
Most Android devices will allow you to review and manage both the location permissions for your device and for any individual apps by opening your device's Settings and choosing Location. Here, you'll have to choose what kind of Location mode to enable on your device. For MapQuest to work best, you'll want to avoid using "Battery saving" mode, and try using either "High accuracy" or "Device only" mode, which may use cellular/Wi-Fi data or GPS to locate you as accurately as possible.
Please note: The steps to enable and manage your device's location settings can vary slightly by device, but this Google help article should include location mode instructions for your device and for individual apps on most Androids.