Your (maturity%) x (# of ICPs staked) has to reach above 1 in order for you to spawn a new neuron. So you can do the rough calculation. For your 8-years, you have 4% more to go.
In general, the more you spread your ICP in multiple neurons, the slower you get your spawned rewards. For me I just put all my ICPs in one neuron and compound my rewards back to it to maximize the speed.
You said- “I didn’t know how I could add ICP’s to the stakes, so I ignorently made new stakes”. There is an official guide here Guide: How to top-up an existing neuron. But what I did is just sending my tokens to my staked neuron address. You can find your neuron address by searching your wallet account on https://dashboard.internetcomputer.org/ and you look for the transactions under your account and you should be able to find your neuron account.