AB,
I can only answer this from my own perception of reality.
Well thanks for trying, but your problem here if you want to evangelise is finding a bridge from “my own perception” to anyone else’s perception. My own perception might be that there are fairies at the end of the garden but that provides no reason at all for you to agree with me.
I have already listed reasons why I can't believe in anything else other than the God I know and love,…
All of which were entirely subjective and personal to you. Some of us might think too by the way that, even if we shared a strong belief about something, we’d be more than concerned that we had no good reasons to justify that belief as objectively true even to ourselves, but that doesn’t trouble you at all I guess.
… and who I know loves me and all His creation.
No, you don’t know that at all – you just believe it as an article of personal faith. To know something you need to have a reason to justify the belief as true, which is where you run out of answers.
I will continue to witness to what I perceive to be the truth,…
“Assert” rather than “witness”, and it’s important that you keep that “what I perceive to be” in there as a reminder to others that you have no reasons at all for them to think you’re right about that.
…because this is what God calls me and other fellow Christians to do.
You’re overreaching again – see above. You believe it, but you don’t know it.
But I also know that I am in competition with the powerful forces of evil which are intent on separating us from God's love, I only wish that the veil of deception could be destroyed in order for us all to share in the joy of knowing the one true God.
And now you’ve gone overboard into la-la land. There are no “forces of evil” – that’s just a hangover from the medieval habit of assigning agency to inanimate objects and forces. People using reason and logic to falsify your claims doesn’t mean that that they’re satan’s little helpers – it just means that, unless you come up with counter-arguments of your own, your reasons for believing what you belief are all false, no matter how sincere you are.
You'd have been better advised by the way just to have said, "no, I don't have any good reasons for you to agree with me" and left it at that.