"Can’t get an appointment "

I have had an issue for over 5 weeks, did the online form and the info I got given hasn’t helped so I tried to call for an appointment and 3 days on a trot the practice was at capacity. Managed to speak to a paramedic on the phone, again their info hasn’t helped so I have tried again to get an appointment to be told they are at capacity. I work first thing in the morning so struggle to call as soon as they open and if I do manage I work so can’t just take time off. I call on my day off and they always seem to be at capacity. I shouldn’t have to go to Corby walk in to be seen. Poor service and reception staff can be very rude in tone, it shouldn’t take me over 5 weeks to get an appointment!