Also for some reason even though the races are exciting I don't find them engaging these days.
You are not the only one I too felt a bit drowsy at times and surfed channels at times to stay awake.
I started watching F1 sometime in 2002 regularly from 2003. Despite different tyre manufacturing and refuelling the races felt more genuine than what we watch today.
The last time I was nervous and paced around the room while watching a race was Abu Dhabi 2012 thanks to Kimi and the safety car at the end.
In my case I think the problem stems from the fact that I support 1 driver Kimi who today was non spectacular as he drove quietly glued to a pre-decided strategy.
I think I will have to travel to 2008 which is where the problem started. Mid-season Kimi's race and qualifying results became abysmal and continued so. If Kimi was not near a podium place I would loose interest but still would watch the races hoping he would do something spectacular at the end.
2009 Ferrari went far behind and Kimi had issues like water in KERS system or the team screwed up by putting him on wet tyres before rain started. After the spring hit Massa they decided to focus on Kimi but by that time Kimi was in no position to challenge for the championship and Santander/Alonso rumour started taking it's toll.
2010 - No Kimi on grid
2011 - No Kimi on grid
2012 - Kimi is back but F1 has changed for worse.
2013 - Same story.
2009 - Saw introduction of KERS which resulted in Ferrari's downfall that year but helped Kimi get a win in Spa and cars with KERS were spectacular to watch at start.
2010 - Teams decided to not to use KERS. Webber vs Sebastien vs Alonso. Despite that the racing had reached a point of no overtaking at all. With no favorite driver among the trio there was nothing to cheer.
2011 - DRS is introduced which were slammed as tools for artificial racing and it did just that. Jenson benefited despite Schumi's Herculean effort he was reduced to nothing in Canada.
2012 - Kimi is back but so is DRS and KERS alongwith unfathomable tyres.
2013 - More of same.
Despite 2002 and 2004 being bore-fests you knew that these guys were pushing their cars to the limit at all times and if you momentarily forgot that Schumi existed you still had great racing in different tiers like DC, Kimi, Ralf and Juan or Narain vs Monteiro. Seriously Narain in his first outing was impressive.
Back then every overtaking move had different stages of execution like -
The driver doing his best to catch up with the car in front over laps.
Then waiting for the driver in front to either make a mistake or wait for the sector where his car is strongest to make an opportunity for himself, not waiting for a DRS section or tyres of the car turning rubbish.
The execution itself needed skills as the driver in front would defend and the challenger had to get past using skill not NFS like aids.
This is why even a suicidal driver like Sato was more entertaining than Nico will ever be.
Compared to those seasons - till 2008, current racing seems arcadish.
Apologies for rambling.