Where to start?

I was wondering if you know where I can find projects or tutorials on building a handheld device with a microcontroller, a battery, using Bluetooth Low Energy (BLE) technology, galvanic skin response accelerometer sensor and a way to charge the device. I am very new to this and have time to learn, just not sure where to start.

I have found some microcomputers and other items individually, yet not sure how to know if they will play well together.

Thank you.

You can impletemt your project with Arduino UNO or Arduino Nano 33 BLE.