Guide Me please

hello friends,
i just start learning guitar,but really found difficult in playing C Chord and G7 chord,it sound different every time and sometimes when i push 'e' string it also pushed 'a' string along with,and not sound clearly,how to practice chords please guide thanks in advance

 

you need to make your fingers stronger
practice chromatics

 

thanks vader,i will more focus on chromatics

 

practice practice practice gud luck

 

Practice..practice..practice..Practice..practice..practice..Practice..practice..practice..Practice..practice..practice..Practice..practice..practice..Practice..practice..practice..Practice..practice..practice..Practice..practice..practice..Practice..practice..practice...............................BUT with proper technique!!!!