I have to taper off my med (risperdone/risperdal) because it's causing me constipation, not going at all,my dr knows but they are hopeless.

Anyway I've been on just 1mg every night for 5months probably the longest I've ever been on a med.

I think I should be okay coming off it as I have very mild symptoms no voices or anything.

I had a flare up of mild paranoia two weeks ago and 2mg was added during the day that lasted for one week,then it was reduced to 1mg during the day again for one week.
I thought since I'd only been on this extra dose for two weeks it was perfectly okay to cut it down to 0.5mg this morning well I did and tonight I can't sleep.Even though I've taken my usual 1mg.
Should I have tapered more slowly even though I'd only been taking it two weeks??should I resume the 1mg and try and taper more slowly?

When coming off the 1mg I take at night for five months should it be a gradual 10 percent decrease?

Sleep problems are my biggest issue and fear with coming off risperdal since it seems to have really caused a dependency on the drug for sleep,and the main reason I took it was for sleep.