Is there any highschool shoujo manga were the mc is not a weak 'average looking' useless c...

Something different from your typical old school cliche shoujo

http://www.mangago.me/read-manga/uruwashi_no_yoi_no_tsuki/

If you are okay with coloured
http://www.mangago.me/read-manga/july_found_by_chance/
http://www.mangago.me/read-manga/vitamin_c_vitamin_d/
http://www.mangago.me/read-manga/green_boy/
http://www.mangago.me/read-manga/mango_s_bone/
http://www.mangago.me/read-manga/scorching_romance/

http://www.mangago.me/read-manga/apple_shinjo_mayu/

http://www.mangago.me/read-manga/hana_ni_arashi/

http://www.mangago.me/read-manga/nemurenu_kishi_ni_hanataba_wo/

http://www.mangago.me/read-manga/nandemo_arisa/ (short romantic comedy, she starts off acting timid but is actually wild)

http://www.mangago.me/read-manga/gokusen/ This is one of my favorites but it's long and the romance comes way later. It's horribly funny though.

http://www.mangago.me/read-manga/h3_happy_hustle_high/

http://www.mangago.me/read-manga/otokomae_beads_club/ badass female protagonist who desperately wants to be "normal" and feminine