If someone, like a parish priest, believes you should be keeping the Blessed Sacrament in your home then they believe you should have a tabernacle there. So the procedure for getting a tabernacle in your home should be begun by you, if that is what you want. Until you have an approved tabernacle I doubt the circumstances exist to justify you keeping the Blessed Sacrament at home overnight.
From the Code of Canon Law: “Can.* 935 No one is permitted to keep the Eucharist on one’s person or to carry it around, unless pastoral necessity urges it and the prescripts of the diocesan bishop are observed.” More is at
vatican.va/archive/ENG1104/_P3C.HTM .
The current General Instruction of the Roman Missal refers the 1938 Instruction Nullo Unquam Tempore as a footnote after this sentence: “317. In no way should any of the other things be forgotten which are prescribed by law concerning the reservation of the Most Holy Eucharist.”
The tone of this 1938 document is quite severe, for example:
“10. The Sacred Congregation is not unaware that the aforesaid cautions will not fully secure their object, unless their Lordships the Bishops and local Ordinaries, while enjoining their observance on Parish Priests, Rectors of Churches, Moderators of Institutes of all sorts, and superioresses of nuns, also keep the following four most important points in view.
(a) Especially during diocesan visitations, but also even outside of such visitations, as often as a case demands it, they should either personally or through suitable and prudent ecclesiastics, diligently inquire and secure ocular knowledge of the provision made for the safe-keeping of the Blessed Sacrament, not only in each parish, but also in each church or oratory which enjoys this right. As often as they find out that something is wanting in the safeguards rightly required, they must order them to be made good at once, a short time limit being given, under penalty of a pecuniary fine, or even suspension in the case of priests, or removal, according to the gravity of their negligence, to be incurred by those who have the duty of supplying all means of security.”
The full document is at
romanrite.com/nullo.html .