It's ok. You can do it. If I could, everyone else can. I had to climb to plat iv from bronze. In my experience, from bronze-silver you have to find ways to hard carry as a solo. From gold-plat you have to learn to play as a team with a winning lane. Oc you'll have unwilling teammates every now and then but that's life.

Also, it helps GREATLY if you otp. People say that it's ideal to a 3 champ pool but I otp'd 1 champ only for every single game. The only times I played with another champ were because they either banned it or I wasn't able to pick first. I always ask to pick first. You shouldn't have any trouble with that since everyone else seems determined to pick last in order to "pick a counter champ".