Once you feel you’ve reached a plateau and are unable to copy what you hear further — check out the exercises on this site.
They’ll help you break down what you hear into manageable pieces … and you’ll be able to put the exercises together to copy what you hear very closely.

for now .. listen + copy is good .

The beat counting lesson is more for someone who wants to increase “listening appreciation” from basic all the way up to very advanced levels — advanced like being able to keep up with beats with fractions.
+ it’s good for someone who wants to be able to design their own Tihais.

your hand position on the playing string is perfect

bowing will come with practice – try different things – gripping the bow more tightly or tilting it so it slides along the string at different angles … or tilting the dilruba inwards a bit .. etc .. see what works for your particular instrument.

just keep listening and playing – you’ll pick up real quick.
learn about notations in indian classical music – that’s all you need really