1.
I sometimes bite off more than I can chew. If I have some sort of "dry season" with my RPs I tend to over-estimate how many plays I can do, and end up overwhelming myself by accepting a lot of them. Been getting better at this, but still tends to cause some problems from time to time.
2.
I'm not very good at conveying my plot-ideas. Most of the time I think I present them uninteresting way, or I think that no-one is interested in what I have to offer. This led me to be half-hearted and accept stuff even remotely interesting to me. Also gotten better at this slowly but surely and now try to bring my ideas more out there and throw my two-cents on my partners plot ideas.
I guess I could say I'm not the best in communicating in general. I think I come out like a stick-in-the-mud to many people who look at my thread and the way I type, chat etc. usually seems overly "professional" to myself at least.
3.
I'm pretty insecure and unsure of my writing in general. I haven't found a style that fits for me the best, and I rarely tend to get criticism of my writing, so I'm not sure where I should focus when trying to improve my creative writing, or if I even should try to improve anything and just roll with what I know already. There are as many writing styles as there are people, but I still can't shake off the feeling that I'm lacking as a creative writer, and make a pretty dull roleplaying partner.
So I guess the bad habit in this is worrying about how I write too much, instead of just writing how I feel the best in any given situation.
4.
My pace in my plays is often inconsistent to say the least, and I think that has been the reason of many potentially great plays dying on me