Well done on passing. Don't let anyone tell you now that flying is easy!
Gawd I remember my Instrument checkride......ahem both of them. Actually it was nearly three as I originally trained for my instrument ticket in the the US but a hurricane came along, (no not the aeroplane, the storm), and mucked up the weather for the whole southern USA as well as flattening Charleston and cancelling the checkride.
But my final one in my own country was easily the most intense 2 hours of my life. 100 % concentration. Flying back home after passing it was easily the most relaxed flight in my life. I expect your feeling the same. I did the Commerical previously and it was fun in comparison.
Commerical next for you then? CFI, CFII etc etc? Then commuter airline? followed by airlines and big bucks?