Brother if your clutch plate will worn out their will be no power. i.e you will face low pickup the car will not cross 100km/hr easily or when going on a bridge or uphill it will loose power.
Vti clutch plate / pressure plate and thrust bearing all should be changed at the same time will roughly cost u 20,000 with labour for genuine FCC one.
Let me know if you need one I can help.
I think your 2nd gear shifter is worn out due to low gear oil or incorrect oil.
try this honda gear oil for 3 months and situation will improve greatly will cost u 900 rs / litre you will need 2 bottles.
If does not help try to adjust the clutch plate from any Honda 3S, its hydraulic.
Otherwise your mechanic will have to open the gearbox which you should avoid at any cost.
Civic gearbox is one of the best mine is working smooth as silk even after 195,000 KM.