What should I buy first ?

My current chothu sa setup 😅

Hey, I have chosen the one option wrongly. Please help me

Depend karta hai. If you like fixed setup or movable. Ideally kuch nhi chaiye apart from laptop. Dinning table nd chair will work. Q paise barbad karna hai.

Whatever increases your productivity.
For me it'd be a monitor.

For me, I'd be pissed about having a fancy table and shit chair, and vice versa.

I got all 3 together

Sequence
Chair, table, monitor

Chair - it's the most important imo

Where will you keep the monitor if you dont have a table?

A monitor without a table is unusable , a table without a monitor is stull usable.

If u have a spare chair (dining table, plastic, etc) then u can still work it out for a couple of months.

Table -> Monitor -> Chair

Congrats, you discovered the obvious: Chair + Table + Monitor = Mandatory 😎

What's your budget? As you have laptop, go to some local carpenter shop/factory, they will give 2*4 sq feet table for around 2k, same idea for chair, then invest in monitor.
I did mine in around 20k, 2k table, 2.5k chair, 15k qhd 27inch monitor and 2k monitor arm (if you wish to have) .
So first go for table, if you have stool or any kind of chair at home else that would be priority. Monitor would be last.