How to get approved for mortgage with 1 income

[Sapir Simply]

Hey everyone. I am a single young woman in her 20's wanting to buy a house (potentially a place that needs some renovation so I can make some profit on it once I'm done) but currently I have a little over 30K to put down but my income is not great. I've checked one lender and I got approved for 200K. Unfortunately in my area (Tampa bay) it won't buy me anything. I need at least 300K loan. Do you think I should save up more money in order to get a larger loan? I'm looking for a better income (currently working on my pre licensing real estate 🤞). Does anyone know a more flexible lender? Also my credit score is great, based on FICO score I'm over 700. PLEASE ADVISE, trying to get out of this rat race ASAP. Love you all and this community is absolutely amazing.