Hi Jacob:
I won't comment on your neurosis issue. However, I can address how I've dealt w different obstacles in my practice over the years.
A few thoughts:
1. I used/use the the word/mantra Buddho (in/out breath for ea syllable) at all times and in all situations that are stresslful. As I remember to bring it back, the forgetful gaps in time between remembering diminish significantly over time. Lately, My one-pointedness has increased. Now, when I breath in I automatically use Bud and Dho arises automatically when I breath out. It's imprinted in my memory bank and available at all times, when needed and when not forgotten :-).
2. I very much vary the postures (standing, lying, walking, sitting) and have been doing so for past the 5-6 years. In the metro/subway, I stand and meditate for the duration of the # of stops I'm on it for. I repeat "buddho" silently, standing, eyes shut (as long as I have a grip :-) ).
3. Prior to sitting meditation: recently, I was becoming signficantly restless (I had just returned from a retreat) and as such there was little to gain if the restlessness didn't subside when I was about to sit.
A) So, I chose to do
walking meditation and change my focus of attention from the breath to the feet, so to feet, so to speak. Here are an article and a video:
--Article: Walking meditation in the Thai Forest Tradition @ http://www.dhammaloka.org.au/articles/item/1204-walking-meditation-in-the-thai-forest-tradition.html
Meditationhttp://www.dhammaloka.org.au/articles/item/1204-walking-meditation-in-the-thai-forest-tradition.html.
--Video: How To Meditate III - Walking Meditation with Yuttadhammo Bhikkhu @ http://www.youtube.com/watch?v=_IFvablc6EI.
Initially, walking med gave me strength, literally, in my legs and body in general. As a result my mind learnt progressively to better deal with the stress related to my restlessness.
The hallway in my apartment has about 24 paces, one back&forth would take about 5 min. Initially, I was able to do but 3-4 times. As I realized the gains above, I progressively brought it up to 5 and then chose to challenge myself, after a couple of weeks, and raised the bar to 6 for about a 30 minute period. Now, occasionally I take it 45 to 60 minutes.
Now, sometimes I find the walking med to be sufficient and preferable. I may not sit for that period. I walk. Both have/had the same merit in that moment in time. I don't know how quickly a walking med practice can ameliorate one's mental balance but, if I were to hazard a guess, there would be progressive gains in body (strengthening) and mind (loosening & strengthening). Gradually, the gains from walking med translate into benefits when practicing mindfulness when doing the dishes for ex.

I also chose to practice simple - not always so simple

-
standing and lying meditation. At Bhavana Society retreats in WV, a number of us would stand, or walk for that matter, when necessary.I've found it very beneficial in the fact it reduced/neutralized my discursive mind, as Sister Ayya Khema would label it, and then I could sit back down and deal w whatever might have bothered me earlier when sitting, such as pain in the knees, anxiety, restlessness et all.
I was listening to audios from Venerable Dhammadipa's retreat held 3 years ago at Chuang Yen Monastery. In one of the first two or three recordings (http://www.baus.org/en/?p=253) he began to talk about yoga and how our posture directly impacted the quality of meditation. He spoke of the Jains who practices a standing meditation.
This led me to search, discover "Kayotsarga" a standing/lying meditation technique practiced by the Jains well before the Buddha. Here is an excellent description of the process: http://www.jainworld.com/preksha/hpmtrain/pm03.htm. It is done both standing and lying: working from the toes, one leg at a time and progressing all the way up to the torso and the head (in a very non-invading manner btw). It takes about 15 minutes or more by repeated practice. I very much believe in this practice of standing meditation technique.
Over the years, I had been doing lying meditation each and every day, at bedtime and on wakeup, for 5-10 minutes before rising. Doing lying Kayotsarga has enriched my practice as distinguished from my earlier general approach. I've gained greater knowledge of my body and mind.
C) Mindfulness, practiced w my breathing at all times or whenever "not forgotten", is paramount for me. I look at as going back to basics. Basic training if you will. It's the glue that holds my practice together.
D) Ayya Khema on the Meditative Mind @ http://www.vipassana.com/meditation/khema/hereandnow/meditative_mind.php.
with Metta and encouragement, Georges