Gng what do I buy for 30k inr

So guys, basically I'm 16 and I have a bank account (can't take money kinda thing). At the time I turn 18, there will be around 30k in that (I'm NOT rich). I want to buy something that will be useful for me, I love coding. I'm leaned towards the pixel watch 3. I have a Redmi note 9 pro and do NOT want a phone. I'll be buying in 2028.