Person harrassed by jinn asks for advice:

Brother I'm in almost the exact same boat as you,I'm a revert ,only one in my family and am affected by magic. My Grandmother practiced magic on my immediate family and it has had some pretty serious consequences.

I've been struggling with ruqyah for a little bit now and My advice is to take it slow but consistent at first. your gonna want to jump right in and kick some ass but it's better to approach this cautiously. slow and steady wins the race. depending on how long you've been affected it may take time to fix this,be patient. I know you want to solve like tomorrow and move on with your life but it will take effort on your part, and time.

Start by getting all your prayers in on time and maintaining wudu as much as possible. move up to listening to a some ruqyah audios and then try to increase your dua once your comfortable and consistent.
Move up to reciting on yourself

If you think that you've been fed sihr I suggest senokot tablets. Only use for 1 or 2 days and then stop for 2-3 days and repeat this cycle up as many times as needed . If you eaten sihr you will feel a very sharp pain,each time the pain will feel further along your digestive system. I would do a round of this just to be safe.

I have found for each day of audio or self-ruqyah there will retaliation from the jinn the next day. You hurting it by praying,dua,ruqyah etc and it is going to want revenge. Expect it and prepare for it.
If you go heavy and listen to say 4 or 5 hours of ruqyah the first day your getting your ass kicked the next day for sure, When I first started ruqyah on retaliation day I couldn't get out of bed or function at all and couldn't figure out why. start slow and build up.

Think of it like boxing,couple jabs and then jump back and defend yourself.

You will find that they will try to get to your through your dreams,trying to trick you,they may be very frightening or off the charts weird.
Very intense at first but this will taper off as the beat down the jinn and it does not have the strength to mount a good attack.
The more you beat it down the less effective it's attacks will.

There will be days when you want to quit and you may even stop ruqyah but stay on top your prayers.

Other posters follow with more fundie advice.