Hi Aminul, don't worry not your fault at all. Clutches are hit and miss some go a 40k and others like mine still fine at 110k so see how yours is first. Exhausts and brake lines are a popular replacement and also plenum spacer, panel filter in the standard air box followed by an uprev.
The stubby aerial 'mod' is a long standing joke on here and the reason people are mentioning a service so much is because you'd be surprised how many new owners join here without a thought for one!
Anyway welcome along