That sounds a bit like a rosary to me rather than a prayer rope; my prayer rope isa 50 knot model with two spacer beads, one at the cruciform end, and one opposite. So when I hit those I pray the Trisagion according to OO praxis (Holy God, Holy Mighty, Holy Immortal, Who was crucified for us, Have mercy on Us; Eastern Orthodox will omit "who was crucified for us" as for them the Trisagion is a Trinitarian rather than Christological prayer), and the Lord's Prayer.
Now it sounds like you have a rosary if your prayer rope has beads, and every tenth bead is different. So you could say the Lord's prayer at the bottom, the Trisagion at the top, and Kyrie Eleison at each spacer. Or a number of other different configurations.
It is also possible to pray the Rosary but the consensus is we should not visually meditate on the Mysteries of the Rosary as the Roman Catholics do. St. Seraphim of Sarov said Hail Marys according to a rule which is still observed at the monastery and separate convent that bears his name, built atop his woodland hermitage. There, the monastics use a modified version of the Lestovka, the leather prayer rope favored by Old Ritualists and Old Believers, which has a different configuration and is designed to be used as, essentially, an Orthodox rosary. However, I myself prefer the Jesus Prayer. You might pray a Hail Mary, using the Orthodox form (see Wikipedia) rather than the Roman Carholic form, on the spacer beads, if you have a strong Marian devotion.
Either way, if you have formally begun your Catechesis in preparation for baptism, you should review your prayer rule with your priest and ask him for guidance on how he suggests you use the rope, and you should go on YouTube and view the lectures by Metropolitan Kallistos Ware on the subject. If you aren't yer a Catechumen, now would be a good time to become one.
By the way, I did once encounter a Russian priest who was opposed to the lay use of prayer ropes and the Jesus Prayer. These are an important part of my faith and my understanding of Orthodoxy; if I found myself in such a parish, to be very frank, I would move to a different parish. Though I am OO, we have developed a love for the Jesus Prayer, and while I was at St. Anthonys Coptic Monastery I Was told the monks had been reading the Philokalia together, the translation by Kallistos Ware. And certainly Fr. Lazarus has been an enthusiast of it. The prayer is said to have originated in the form of the Kyrie Eleisons said repeatedly by early Desert Fathers who were illiterate, and thus one could say it's origins run right to the heart of Orthodox monasticism.
However it sounds like your parish is one of the Jesus Prayer friendly majority, since someone gave you a prayer rope (what a nice thing to do; on my first visit to a Coptic church one of the Deacons gave me a Euchologion, and that always touched me). Even if your prayer rope is technically a Rosary, it's fully useful for saying the Jesus Prayer, and in fact the greater number of spacer beads makes it more adaptable to different combinations of prayers. The only downside to rosaries is some of them make noise when you oray them, whereas the knotted prayer rope or the notched leather Lestovka are inherently silent, however, I have a rosary, and noise has never been a problem when operating it.
I'm somewhat of a prayer rope enthusiast, I especially love the fine leather lestovkas. At present I use an inexpensive $35 vinyl lestovka acquired from the Church of the Nativity in Erie, PA, a ROCOR Old Rite parish. However, if conditions permit later in the year I might order from Russia a real leather lestovka; they aren't that expensive, and it would be nice to have. I would also like to add a longer conventional knotted prayer rope to my "fleet."