You can 't make your civic fast. That's the cheapest thing you can do: accept that and move on.
Thank being said...
They're incredibly fun to drive, modify, learn about cars on, and service. Your best bet is:
1. Coilovers, camber correction, and professional wheel re-alignment. the most expensive mod you should drop dough on is your ride's suspension and handling.
2. A mechanical refurbishment. Change those leaky engine oil seals, plugs, worn belts, grimy fuel filters, stuck PCV valves, run a compression test, change your oil and throw in a magnetic drain plug, ect, and do it yourself. Half the fun of owning a civic is being able to say you work on it yourself. Get your civic as close to factory performance as you can and it will last you forever.
3. Buy an alarm. A good one. And pay for the professional stealth install.
4. Build and install a fuel cut-off switch. With an intimidating blinking light on the dashboard.
(optional, you lovable grimy ricer you
5. Clean and detail the interior and exterior. Shampoo the carpets for the new car look and feel. Your car is basically your d**k, so treat it like such and keep it clean.
Follow these steps and you'll look and feel better than 95% of all the other civics out there.
All other mods should really be done after the first four things on this list. This includes any intakes, headers, exhausts, short shifters, stage three competition clutches (mated perfectly with the d16y7), forced induction, any single damn thing off of craigslist, speakers, subs, amps, headunits, blackened out headlights, engine swaps (which probably isn't the first thing on your list of things to do to your car if you're reading this post, anyway), window tints, OBDII-to-OBDI-conversions-because-I'm-going-to-tune-with-chrome, tow hooks, grime catchers (stuffed animals) hanging off of the tail end of your car, JDM -anything-, mugen shift knobs......and so on.