While its true that clover is a nitrogen fixing plant and its used in many agricultural practices as such, as a weed its still often an indication that the soil is poor and low in nitrogen rather than high in nitrogen.
In fact it is actually because of clovers ability to fix nitrogen into the soil and survive where there is none, it's typically the first weed to appear in nitrogen depleted areas.
BTW, if for some reason your plant does die, feel free to PM me and I'll send you some seeds. That way you won't need to worry too much about loosing the plant completely