I'm a bit higher-rated than you, and have been playing a long time, but am in a similar position. I'm happy playing e4 against e5 and the Sicilian, but have never really felt comfortable against some other defences, especially the French. I'm just starting to do what @dpnorman recommends, playing 1.nf3 as a way into the English (and if Black plays 1...d5 then the Reti proper with 2.c4). Played and won my first rated game with it last night, and it felt so good to be doing something a bit different. There are lots of videos on the repertoire on the internet.
I wasn't sure what to play against the French for a long time. I've been playing the Tarrasch but finally decided I want to switch to Nc3.
I like these positions. It feels in a similar spirit to some sharp Najdorf.
The Open Sicilian I absolutely adore. This is why I play e4.
I too hated dealing with the French until I started playing 3. Nc3, which I agree is most in the spirit of other 1. e4 openings. It takes some study, but at least you get *fun* positions to study (unless they play the bloody Rubinstein...).
thats good to